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Technical Data Sheet
PartsTable / COMPONENT / 10598931-3
10598931-3 ✓ 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: 1.250 INCHES NOMINAL IN, inside_diameter_length: 0.500 INCHES NOMINAL IN, round_cap_outside_surface_condition: SMOOTH, tube_outside_diameter_for_which_designed: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-877-2672, 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
10598931-3
NSN: 5340-00-877-2672
FSC: 5340
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialPLASTIC
design_typeFRICTION
overall_diameter1.250 INCHES NOMINAL IN
inside_diameter_length0.500 INCHES NOMINAL IN
round_cap_outside_surface_conditionSMOOTH
tube_outside_diameter_for_which_designed1.000 INCHES NOMINAL IN
NSN5340-00-877-2672
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10598931-3 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
•
OVERALL DIAMETER: 1.250 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
•
MATERIAL: PLASTIC
•
INSIDE DIAMETER LENGTH: 0.500 INCHES NOMINAL IN
•
DESIGN TYPE: FRICTION
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER1.250 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
MATERIALPLASTIC
INSIDE DIAMETER LENGTH0.500 INCHES NOMINAL IN
DESIGN TYPEFRICTION
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
M85049/138-33AUpgraded Successor
successor cross-reference
successor
10125974-112Upgraded Successor
successor cross-reference
successor
ES2426-02A032Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10598931-3?
10598931-3 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 10598931-3?
There are 3 known substitutes for 10598931-3: M85049/138-33A, 10125974-112, ES2426-02A032. Substitute compatibility should be verified for your specific system.
What is the NSN for 10598931-3?
10598931-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-877-2672. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026