PartsTable
Technical Data Sheet
MS90376-18Y-F ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: FRICTION, overall_diameter: 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN, special_features: COLOR-YELLOW, inside_diameter_length: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, round_cap_outside_surface_condition: SMOOTH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-234-2875, 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
MS90376-18Y-F
NSN: 5340-01-234-2875
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC
design_typeFRICTION
overall_diameter1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
special_featuresCOLOR-YELLOW
inside_diameter_length0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
round_cap_outside_surface_conditionSMOOTH
material_document_and_classificationMIL-B-81705, TYPE 2 MIL SPEC SINGLE MATERIAL RESPONSE
tube_outside_diameter_for_which_designed1.018 INCHES MINIMUM AND 1.038 INCHES MAXIMUM IN
NSN5340-01-234-2875
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS90376-18Y-F 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
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
INSIDE DIAMETER LENGTH: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
MATERIAL: PLASTIC
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.018 INCHES MINIMUM AND 1.038 INCHES MAXIMUM IN
OVERALL DIAMETER: 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-81705, TYPE 2 MIL SPEC SINGLE MATERIAL RESPONSE
DESIGN TYPE: FRICTION
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
SPECIAL FEATURESCOLOR-YELLOW
INSIDE DIAMETER LENGTH0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
MATERIALPLASTIC
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.018 INCHES MINIMUM AND 1.038 INCHES MAXIMUM IN
OVERALL DIAMETER1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-81705, TYPE 2 MIL SPEC SINGLE MATERIAL RESPONSE
DESIGN TYPEFRICTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
1219270-8Upgraded Successor
successor cross-reference
successor
NAS813-18Upgraded Successor
successor cross-reference
successor
34310513062Upgraded Successor
successor cross-reference
successor
MS90376-40YUpgraded Successor
successor cross-reference
successor
MIL-C-5501Upgraded Successor
successor cross-reference
successor
AS90376Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS90376-18Y-F?
MS90376-18Y-F is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace MS90376-18Y-F?
There are 16 known substitutes for MS90376-18Y-F: 1219270-8, NAS813-18, 34310513062 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS90376-18Y-F?
MS90376-18Y-F is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-234-2875. This indicates validated use in U.S. government and defense supply chains.
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