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AS90376-28R — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS90376-28R: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, POLYETHYLENE (PP), design_type: THREADED, overall_diameter: 1.950 INCHES NOMINAL IN, inside_diameter_length: 0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN, end_item_identification: 5895011278134. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-480-5241, 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
AS90376-28R
NSN: 5340-01-480-5241
FSC: 5340 — Hardware, Commercial
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
design_typeTHREADED
overall_diameter1.950 INCHES NOMINAL IN
inside_diameter_length0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
end_item_identification5895011278134
NSN5340-01-480-5241
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS90376-28R 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
•
DESIGN TYPE: THREADED
•
OVERALL DIAMETER: 1.950 INCHES NOMINAL IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
INSIDE DIAMETER LENGTH: 0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER1.950 INCHES NOMINAL IN
END ITEM IDENTIFICATION5895011278134
MATERIALPLASTIC, POLYETHYLENE (PP)
INSIDE DIAMETER LENGTH0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
M85049/138A-57AReference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS90376-28Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS85049/138Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS90376-28R?
AS90376-28R is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace AS90376-28R?
There are 3 known substitutes for AS90376-28R: M85049/138A-57A, MS90376-28, SAE-AS85049/138. Substitute compatibility should be verified for your specific system.
What is the NSN for AS90376-28R?
AS90376-28R is cataloged in the U.S. Government catalog under NSN 5340-01-480-5241. 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.