PartsTable
Technical Data Sheet
PartsTable / O-RING / 81.11.157.39
81.11.157.39 ✓ 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 81.11.157.39 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-106-0942, 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
81.11.157.39
NSN: 5331-01-106-0942
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number81.11.157.39
NSN5331-01-106-0942
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81.11.157.39 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
•
TEMP RATING: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 1.193 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.977 INCHES MINIMUM AND 0.997 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
MATERIALRUBBER FLUOROCARBON CLASS FPM
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER1.193 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.977 INCHES MINIMUM AND 0.997 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
7HB539Interchangeable
interchangeable cross-reference
interchangeable
SE12IN FN-52 SHT 3Interchangeable
interchangeable cross-reference
interchangeable
500292Interchangeable
interchangeable cross-reference
interchangeable
AMS7259Interchangeable
Same NIIN cross-reference
interchangeable
ARP568-120VIT0N90DUR0METERInterchangeable
Same NIIN cross-reference
interchangeable
AS3581-120Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81.11.157.39?
81.11.157.39 is a 81.11.157.39.
What parts can replace 81.11.157.39?
There are 12 known substitutes for 81.11.157.39: 7HB539, SE12IN FN-52 SHT 3, 500292 and 9 more. Substitute compatibility should be verified for your specific system.
Is 81.11.157.39 still available?
81.11.157.39 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026