PartsTable
Technical Data Sheet
PartsTable / O-RING / 60-P-31-340
60-P-31-340 ✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 3.736 INCHES MINIMUM AND 3.804 INCHES MAXIMUM IN, center_hole_diameter: 3.335 INCHES MINIMUM AND 3.365 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-251-9373, 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
60-P-31-340
NSN: 5331-00-251-9373
FSC: 5331 — O-RING
CAGE: 28486 — WEST AMERICAN RUBBER CO EXTRUDE PRODUCTS DIV (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter3.736 INCHES MINIMUM AND 3.804 INCHES MAXIMUM IN
center_hole_diameter3.335 INCHES MINIMUM AND 3.365 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-00-251-9373
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 60-P-31-340 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
•
OUTSIDE DIAMETER: 3.736 INCHES MINIMUM AND 3.804 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 3.335 INCHES MINIMUM AND 3.365 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER3.736 INCHES MINIMUM AND 3.804 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER3.335 INCHES MINIMUM AND 3.365 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
SAE-AS3578Interchangeable
interchangeable cross-reference
interchangeable
MS9021-340Interchangeable
interchangeable cross-reference
interchangeable
AS3578-340Interchangeable
interchangeable cross-reference
interchangeable
61488Interchangeable
interchangeable cross-reference
interchangeable
580170Interchangeable
interchangeable cross-reference
interchangeable
84846-DITEM20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 60-P-31-340?
60-P-31-340 is a O-RING.
What parts can replace 60-P-31-340?
There are 20 known substitutes for 60-P-31-340: SAE-AS3578, MS9021-340, AS3578-340 and 17 more. Substitute compatibility should be verified for your specific system.
Is 60-P-31-340 still available?
60-P-31-340 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026