Honeywell North 7600 Replacement Parts Guide

Honeywell North 7600 replacement parts start with one question: which half of the mask failed?

Short answer: the Honeywell North 7600 replacement parts catalog splits cleanly in two. Size-specific parts follow the facepiece you own — the small 760008AS/760008ASW uses the 80801 sealing flange and 80800 oral/nasal cup, while the medium/large 760008A/760008AW uses the 80840 flange and 80815 cup. Everything else is shared across all four models: the 80849 lens, the 80845 neoprene head strap, the 770017 inhalation valve, the 770018 exhalation valve flaps and the 770016 cartridge connector. The catalog number for the inhalation valve is 770017 — the "770717" that circulates in some third-party diagrams is a transcription error that matches nothing in the North catalog.

Why this matters.
OSHA 29 CFR 1910.134(h)(4) allows respirator repairs only by appropriately trained people using "the respirator manufacturer's NIOSH-approved parts designed for the respirator" — and Honeywell's own warranty language adds that servicing a North respirator with unapproved parts voids both the warranty and the NIOSH approval of the unit. Order the wrong number on a 7600 and the failure modes are concrete: a 5400-series face seal that will not seal a silicone facepiece, a welding-shade lens on a standard mask, or a mis-transcribed valve number that matches no genuine part at all.

This guide is the parts desk for the Honeywell North 7600 series — the premium silicone full facepiece reviewed here as the Honeywell North 7600 Series Full Face Respirator Review and stocked as the Honeywell North 7600 Series Full Face Respirator. Every part number below comes from Honeywell's published Respiratory Replacement Parts catalog and the North full-facepiece family documentation. One housekeeping note for 2026: the North brand's PPE business was acquired by Protective Industrial Products (PIP), with the deal completed in May 2025 — Honeywell's old North product URLs now redirect to PIP Global Safety. The parts themselves, their numbers and the "Honeywell North" branding on packaging and listings are unchanged, and this page cites the Honeywell-published catalog documents that remain the current authority.

Know your model before you order

All four are the same 100% silicone facepiece platform: dual-flange face seal, polycarbonate lens with roughly a 200-degree field of view, standard nose cup, and a Kapton speech diaphragm — the feature that separates the 7600 from the North RU6500, which has no speech diaphragm at all. The W-suffix masks add the 8400-series welding attachment and its darkened-bottom lens. If you are deciding between North's three full-face lines rather than repairing one, start at the Best Honeywell North Full Face Respirators 2026 guide or the Honeywell Full Face Respirator Lineup.

Affiliate disclosure: as an Amazon Associate I earn from qualifying purchases. Where a part below carries an Amazon link, the listing was opened and verified against the exact North part number; most 7600 structural parts have no credible Amazon listing, and those rows say so plainly.

Face seal and facepiece body

The sealing flange is the silicone body of the mask — North's catalog calls it the "basic facepiece." It is the one structural part that is strictly size-specific, and it is the part a torn, hardened or distorted seal actually requires. Do not order a 5400-series face seal for a 7600: the 5400 is a thermoplastic-elastomer mask, the 7600 is silicone, and the two seal systems do not interchange.

Lens and lens clamps

One replacement lens serves every 7600 — and the same 80849 also fits the legacy North 7800 supplied-air facepiece, one of several parts the two series share. The welding version is a different part number, not a tint film: the 80849W has a darkened lower section made for use behind the 8400 welding attachment.

Head strap, latches, bails and neck strap

The detail that catches buyers: North 80845 is the neoprene head strap only — hardware not included. Honeywell's catalog says so explicitly. The latches (80846A) and the metal bails (80847A, sold five per pack) that anchor the strap to the facepiece are separate line items. If your strap slips because a latch tooth is worn, the strap itself may be fine.

Valves, seats, guards and the exhalation flange

The valve set is where the 7600 parts list overlaps the rest of the North family. The 770017 inhalation valve and 770018 exhalation flaps serve the 5500, 7700, 5400, 7600 and 7800 series alike, which is why they are the easiest 7600 parts to actually buy. The seat and guard around the exhalation valve are 7600/7800 parts.

Speech diaphragm stack

The 7600's Kapton speech diaphragm sits in a housing with its own locking ring, O-rings and adapter nut — six catalog numbers for one small column of parts, and the reason a muffled-voice complaint has more than one possible fix. The screened housing (80858W) belongs to welding configurations; the airline-nipple housing (80859) belongs to the legacy 7800 supplied-air system, not to any 7600.

Cartridge connectors and oral/nasal cups

The cartridges themselves — North N-Series filters, cartridges and combinations — are consumables, not repair parts; selection lives in the Honeywell North Cartridge Guide.

Parts the 7600 shares with the 7800 and 5400 — and the trap in each

Honeywell's catalog marks several 7600 parts as fitting the legacy 7800 series too: the 80849 and 80849W lenses, the 80862 adapter nut, the 80863 valve seat and the 80867 valve guard, plus the family-wide 770016/770017/770018 set. The trap: the North 7800 is a continuous-flow supplied-air system, not an air-purifying mask — shared facepiece parts do not make the two respirators equivalent, and nothing on this page covers supplied-air flow components. In the other direction, the 5400 shares the 770016 connector, the 80871A grommet and the valve set, but its face seal, lens and strap system are its own — the 5400 is thermoplastic elastomer with a 4-point harness, the 7600 silicone with a 5-point. Cross-brand, nothing here interchanges with 3M at all; the 3M equivalent of this page is 3M 6000 Full-Face Respirator Replacement Parts: 6700, 6800 and 6900, and the head-to-head comparisons are 3M 6800 Vs Honeywell North 7600 and Honeywell North 7600 vs 3M 7800S.

770017 or 770717? Kill the typo before it reaches a purchase order

Honeywell's replacement-parts catalog lists the inhalation valve as 770017, sold six to a bag. Some third-party parts diagrams print "770717" — a number that appears nowhere in Honeywell's own documentation. If a supplier quotes 770717, they have copied the typo; the part that arrives will either be the real 770017 or nothing. Write 770017 on the order, and treat any diagram carrying the wrong number as suspect for its other numbers too.

Diagnosing the 7600 by what the wearer reports

A leak on exhale traces to the exhalation stack — flap (770018), seat (80863) or flange (80852) — and a dirty seat mimics a bad flap, so clean and inspect before ordering. A leak at a cartridge mount is the connector (770016) or its grommet (80871A) before it is the facepiece. Hard pulling on inhale with fresh cartridges points at inhalation valves (770017) stuck or doubled. A muffled voice is the speech-diaphragm stack, checked in order: loose locking ring (80855), damaged diaphragm (80856), missing O-ring (80857A/80861A). Fogging that the nose cup used to control means the cup (80800/80815) is unseated or its valve seat (80814A) is damaged. And a seal that will not pass a seal check despite a clean, undamaged flange is a fit problem, not a parts problem — recheck size against the Respirator Sizing Guide before buying anything.

When the facepiece comes out of service

OSHA 1910.134(h) makes the sequence non-negotiable: a defective respirator leaves service immediately, is repaired by a trained person with the manufacturer's NIOSH-approved parts per the manufacturer's instructions, or is replaced. On the 7600 that decision tree runs:

• Torn, hardened or distorted face seal — replace the size-correct sealing flange (80801 or 80840) or the complete facepiece. Never continue on a compromised seal.
• Cracked, crazed or chemically damaged lens — out of service; fit the 80849 (or 80849W on welding masks) with the clamp hardware torqued per North's instructions.
• Valve curled, torn or missing — replace the exact valve; flaps and valves are consumable wear parts, which is why they sell in multi-packs.
• Strap that will not hold adjustment — 80845 strap, but inspect the 80846A latches and 80847A bails first; hardware is not included with the strap.
• Unknown or aftermarket parts found installed — out of service until restored to the approved configuration; Honeywell's warranty language and the NIOSH approval both fall with unapproved parts.
• Anything on a supplied-air pressure system — reducing and admission valves, regulators and alarms are manufacturer-or-manufacturer-trained-technician territory under 1910.134(h)(4)(iii). That applies to the legacy 7800's flow hardware, never to be field-serviced with this page.

There is no percentage rule here on purpose. Repair-versus-replace is controlled by the mask's condition and the manufacturer's instructions; economics only picks between two compliant options.

After any repair: reassemble, check, and keep the records straight

1. Rebuild with the exact parts listed above for your model and configuration — standard and welding parts kept strictly separate.
2. Inspect the whole mask, not just the repaired zone: flange, lens, clamps, straps, valves, diaphragm, connectors, per Respirator Maintenance Inspection Storage.
3. Clean and disinfect before the mask returns to shared service — method in How to Properly Clean a Respirator Safely.
4. Run positive- and negative-pressure user seal checks on donning.
5. Remember what a seal check is not: it never substitutes for fit testing. The annual and change-triggered fit-test duties are laid out in How to Fit Test a Respirator and the underlying rule in OSHA 29 CFR 1910.134 Respiratory Protection Standard.

Bags, boxes and pairs: reading North package quantities

North sells its small parts in maintenance quantities, and the suffix conventions matter when you compare listings. The catalog's own units: 770017 valves come 6 to a bag, 770018 flaps 4 to a box, 770016 connectors and 80871A grommets 2 to a pack, 80847A bails 5 to a pack, 80857A O-rings 10 to a pack, 80861A O-rings 5 to a pack. Suffixes like -H5 that appear on some North SKUs identify packaging or sellable configurations — treat "80100-H5" as the sellable form of the 80100 spectacle kit, not a different physical part, and never strip or add a suffix on a purchase order without checking the current catalog. Amazon package quantities vary by listing. Confirm the quantity before ordering.

Accessories for the 7600 platform

Documented by Honeywell as 5400/7600-family accessories rather than repair parts: the 8419 flame-resistant welding shroud, the 80100 plastic and 760024 metal spectacle kits (both supplied without lenses), and the 80836A peel-away clear lens covers, sold as three-sheet sets, five sets per pack. None currently has a verified Amazon listing; a safety distributor is the reliable source. The spectacle kits exist because glasses temples may not pass through the face seal — the same rule the fit-test guide enforces.

Verified replacement parts available on Amazon

Only three 7600-family parts cleared exact-listing verification on 2026-08-17 — the shared wear parts. Everything else on this page is honestly unlinked.

Confirm the manufacturer part number and package quantity before ordering. Use only the exact part specified for the respirator configuration.

Frequently asked questions

What replacement lens fits the North 7600?

The North 80849 standard replacement lens — one part for every 7600 model — with the North 80849W as the darkened-bottom lens for welding configurations. Honeywell's catalog lists the same two lenses for the legacy 7800 series facepiece as well. Fitting a lens also involves the 80798 clamp set with its 80843A screws and 80844A nuts.

Does the North 80849 fit both the 760008A and 760008AS?

Yes. The lens is not size-specific — small and medium/large 7600 facepieces take the same 80849. Size lives in the sealing flange (80801 small, 80840 medium/large) and the oral/nasal cup (80800 small, 80815 medium/large), not in the lens.

What head strap fits the North 7600?

The North 80845 neoprene head strap. Check the 80846A latches and 80847A metal bails before assuming the strap itself failed — worn hardware produces the same slipping-strap symptom.

Is the North 80845 head strap sold with its hardware?

No. Honeywell's catalog states the 80845 comes with hardware not included — the latches (80846A) and bails (80847A) are separate line items. Order them together if the old hardware is worn or corroded.

What is the correct inhalation-valve number: 770017 or 770717?

770017. It is listed in Honeywell's replacement-parts catalog at six per bag. "770717" appears in some third-party diagrams and matches nothing in the North catalog — it is a transcription error, not an alternate part.

Are the North 7600 and 7800 replacement parts identical?

No — they overlap. The 80849/80849W lenses, 80862 adapter nut, 80863 valve seat, 80867 valve guard and the 770016/770017/770018 set serve both series, but the 7800 is a continuous-flow supplied-air system with breathing tubes, a flow control valve and belt hardware that have no 7600 equivalent. Shared facepiece parts never make the two respirators interchangeable.

Do North 5400 parts fit the 7600?

Only the deliberately shared items: the 770016 cartridge connector, the 80871A grommet and the family valve set. The 5400's face seal, lens and strap system belong to a thermoplastic-elastomer mask with a 4-point harness and do not fit the silicone, 5-point 7600.

Does the North RU6500 use the same speech diaphragm as the 7600?

The RU6500 has no speech diaphragm — Honeywell's own family comparison lists it as absent on that mask. The diaphragm stack on this page (80855, 80856, 80857A, 80858, 80861A, 80862) is 7600 territory, with the 80858W screened housing for welding configurations.

Is the North 7600 face seal silicone?

Yes — Honeywell specifies 100% medical-grade silicone for the 7600's dual-flange sealing area and nose cup. That is the material reason its seal replacement parts (80801/80840) are not interchangeable with the thermoplastic-elastomer 5400.

Why do so few North 7600 parts have Amazon listings?

Because North distributes structural parts — flanges, lenses, straps, cups, diaphragm hardware — through safety distributors rather than retail marketplaces. Only the shared wear parts (770017, 770018, 770016) cleared exact-listing verification. Where this page says no verified listing was located, buy from a North distributor rather than a "compatible" substitute.

Are generic "fits Honeywell" parts acceptable on a 7600?

No. OSHA 1910.134(h)(4)(i) requires the manufacturer's NIOSH-approved parts, and Honeywell's warranty terms state that servicing with unapproved parts voids the warranty and the NIOSH approval. A generic flap or valve converts an approved respirator into an unapproved one.

Is any North 7600 replacement part "OSHA approved"?

No — OSHA does not approve parts, respirators or any retail product. OSHA writes the employer and repair requirements; NIOSH approves respirator configurations. A listing advertising "OSHA approved" North parts is misdescribing both agencies.

Who is allowed to repair a North 7600?

Someone appropriately trained for the repair, using North parts, following North's instructions — that is 1910.134(h)(4)(i)-(ii) verbatim in practice. For supplied-air systems, (h)(4)(iii) narrows it further: reducing and admission valves, regulators and alarms go back to the manufacturer or a manufacturer-trained technician.

Does a seal check after a 7600 repair replace fit testing?

No. The seal check confirms that donning worked today; fit testing (initial and annual) confirms the model and size fit the wearer at all. Do the seal check after every repair and donning, and keep the fit-test schedule intact — both procedures are walked through in the Respirator User Seal Check guide.

Did the PIP acquisition change North 7600 part numbers?

No. Protective Industrial Products completed its acquisition of Honeywell's PPE business — including the North brand — in May 2025, and Honeywell's North product URLs now redirect to PIP Global Safety. The catalog numbers, packaging and "Honeywell North" branding on parts in circulation are unchanged; this page cites the Honeywell-published parts catalog that remains current.

Further reading on this site

• Honeywell North 7600 Series Full Face Respirator — the series collection these parts support.
• Best Honeywell North Full Face Respirators 2026 — 7600 vs RU6500 vs 5400, ranked.
• Honeywell North Cartridge Guide — the N-Series consumables these connectors mount.
• 3M 6000 Full-Face Respirator Replacement Parts — the same parts-desk treatment for the 3M platform.
• 3M Ultimate FX Vs Honeywell North 7600 — premium silicone full-face head-to-head.
• Respirator Maintenance Inspection Storage — the inspection program every repair on this page feeds.
• OSHA 29 CFR 1910.134 Respiratory Protection Standard — the rule that governs who repairs what, with which parts.