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8631T22 — PLUG,VENT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8631T22: PLUG,VENT.

The PLUG,VENT is a the manufacturer industrial component. Key specifications include length: 1.750 INCHES NOMINAL IN, material: PLASTIC POLYAMIDE NYLON, outside_diameter: 1.6875 INCHES NOMINAL IN, end_connection_type: THREADED, thread_size_and_series/type_designator: 3/8" MALE NPT, part_name_assigned_by_controlling_agency: BREATHER VENT WITH SPLASH GUARD. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-596-5977, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
8631T22
NSN: 5340-01-596-5977
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
length1.750 INCHES NOMINAL IN
materialPLASTIC POLYAMIDE NYLON
outside_diameter1.6875 INCHES NOMINAL IN
end_connection_typeTHREADED
thread_size_and_series/type_designator3/8" MALE NPT
part_name_assigned_by_controlling_agencyBREATHER VENT WITH SPLASH GUARD
NSN5340-01-596-5977
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8631T22 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LENGTH: 1.750 INCHES NOMINAL IN
•
END CONNECTION TYPE: THREADED
•
OUTSIDE DIAMETER: 1.6875 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYAMIDE NYLON
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 3/8" MALE NPT
TECHNICAL CHARACTERISTICS
LENGTH1.750 INCHES NOMINAL IN
END CONNECTION TYPETHREADED
OUTSIDE DIAMETER1.6875 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBREATHER VENT WITH SPLASH GUARD
MATERIALPLASTIC POLYAMIDE NYLON
THREAD SIZE AND SERIES/TYPE DESIGNATOR3/8" MALE NPT
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8631T22?
8631T22 is a PLUG,VENT.
What is the NSN for 8631T22?
8631T22 is cataloged in the U.S. Government catalog under NSN 5340-01-596-5977. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.