PartsTable
Technical Data Sheet
MS25177-32 ✓ 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, POLYETHYLENE (PP), design_type: FRICTION, overall_diameter: 2.094 INCHES MINIMUM AND 2.156 INCHES MAXIMUM IN, inside_diameter_length: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, round_cap_outside_surface_condition: SMOOTH, material_document_and_classification: L-P-390, TYPE L, CLASS L FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-821-7306, 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
MS25177-32
NSN: 5340-00-821-7306
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
design_typeFRICTION
overall_diameter2.094 INCHES MINIMUM AND 2.156 INCHES MAXIMUM IN
inside_diameter_length0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
round_cap_outside_surface_conditionSMOOTH
material_document_and_classificationL-P-390, TYPE L, CLASS L FED SPEC SINGLE MATERIAL RESPONSE
tube_outside_diameter_for_which_designed1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
NSN5340-00-821-7306
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS25177-32 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
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
DESIGN TYPE: FRICTION
MATERIAL: PLASTIC
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
OVERALL DIAMETER: 2.125 INCHES NOMINAL IN
INSIDE DIAMETER LENGTH: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
DESIGN TYPEFRICTION
SPECIAL FEATURESCOLOR YELLOW
MATERIALPLASTIC
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
OVERALL DIAMETER2.125 INCHES NOMINAL IN
INSIDE DIAMETER LENGTH0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
M85049/138-63AUpgraded Successor
successor cross-reference
successor
SAE-AS9592Upgraded Successor
successor cross-reference
successor
MS25177-32Upgraded Successor
successor cross-reference
successor
2689Interchangeable
interchangeable cross-reference
interchangeable
ST2034Interchangeable
interchangeable cross-reference
interchangeable
TR252Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS25177-32?
MS25177-32 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace MS25177-32?
There are 7 known substitutes for MS25177-32: M85049/138-63A, SAE-AS9592, MS25177-32 and 4 more. Substitute compatibility should be verified for your specific system.
Is MS25177-32 still available?
MS25177-32 is currently cancelled.
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