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MS90376-22YB — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS90376-22YB: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: FRICTION, inside_diameter_length: 0.5940 INCHES MINIMUM AND 0.6560 INCHES MAXIMUM IN, round_cap_outside_surface_condition: SMOOTH, tube_outside_diameter_for_which_designed: 1.3300 INCHES MINIMUM AND 1.3500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-445-8956, 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
MS90376-22YB
NSN: 5340-01-445-8956
FSC: 5340 — Hardware, Commercial
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC
design_typeFRICTION
inside_diameter_length0.5940 INCHES MINIMUM AND 0.6560 INCHES MAXIMUM IN
round_cap_outside_surface_conditionSMOOTH
tube_outside_diameter_for_which_designed1.3300 INCHES MINIMUM AND 1.3500 INCHES MAXIMUM IN
NSN5340-01-445-8956
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS90376-22YB 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: FRICTION
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.3300 INCHES MINIMUM AND 1.3500 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC
•
INSIDE DIAMETER LENGTH: 0.5940 INCHES MINIMUM AND 0.6560 INCHES MAXIMUM IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.3300 INCHES MINIMUM AND 1.3500 INCHES MAXIMUM IN
MATERIALPLASTIC
INSIDE DIAMETER LENGTH0.5940 INCHES MINIMUM AND 0.6560 INCHES MAXIMUM IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
SUBSTITUTES & CROSS-REFERENCES 3
SAE-AS85049/138Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS85049/138Reference document
Same NSN cross-reference
Reference document — Secondary reference
M85049/138-42CReference 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 MS90376-22YB?
MS90376-22YB is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace MS90376-22YB?
There are 3 known substitutes for MS90376-22YB: SAE-AS85049/138, AS85049/138, M85049/138-42C. Substitute compatibility should be verified for your specific system.
What is the NSN for MS90376-22YB?
MS90376-22YB is cataloged in the U.S. Government catalog under NSN 5340-01-445-8956. 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.