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29178-22 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

29178-22: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: GASKET. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-940-8424, 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
29178-22
NSN: 5331-00-940-8424
NIINs: 009408424, 012793365
FSC: 5331 — O-ring
CAGE: 15472 — SOLVENTUM PURIFICATION INC. DIV FILTRATION AND SEPARATION DIVISION (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyGASKET
NSN5331-00-940-8424
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 29178-22 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
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
CENTER HOLE DIAMETER: 4.219 INCHES MINIMUM AND 4.249 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CRITICALITY CODE JUSTIFICATIONZZZY
CENTER HOLE DIAMETER4.219 INCHES MINIMUM AND 4.249 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
SUBSTITUTES & CROSS-REFERENCES 2
51166-ITEM 35Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
29178-22CPReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 29178-22?
29178-22 is a GASKET.
What parts can replace 29178-22?
There are 2 known substitutes for 29178-22: 51166-ITEM 35, 29178-22CP. Substitute compatibility should be verified for your specific system.
What is the NSN for 29178-22?
29178-22 is cataloged in the U.S. Government catalog under NSN 5331-00-940-8424. 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.