PartsTable
Technical Data Sheet
L31381 ✓ 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

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 2.099 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM 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 5331-00-085-3494, 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
L31381
NSN: 5331-00-085-3494
FSC: 5331 — O-RING
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter2.099 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-085-3494
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: L31381 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
CENTER HOLE DIAMETER: 2.099 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER2.099 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
50107Interchangeable
interchangeable cross-reference
interchangeable
71978Interchangeable
interchangeable cross-reference
interchangeable
239643Interchangeable
interchangeable cross-reference
interchangeable
2407673Interchangeable
Same NIIN cross-reference
interchangeable
17287P11Interchangeable
Same NIIN cross-reference
interchangeable
5P9897Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L31381?
L31381 is a O-RING.
What parts can replace L31381?
There are 8 known substitutes for L31381: 50107, 71978, 239643 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L31381?
L31381 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-085-3494. This indicates validated use in U.S. government and defense supply chains.
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