PartsTable
Technical Data Sheet
30751331-503 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-053-1944, 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
30751331-503
NSN: 5331-01-053-1944
FSC: 5331 — O-RING
CAGE: 17479 — HONEYWELL INC COMMERCIAL DIV (USA)
SPECIFICATIONS
Part Number30751331-503
NSN5331-01-053-1944
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 30751331-503 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
23KP890Interchangeable
interchangeable cross-reference
interchangeable
4-32163-601XInterchangeable
interchangeable cross-reference
interchangeable
2116348Interchangeable
interchangeable cross-reference
interchangeable
67531Interchangeable
interchangeable cross-reference
interchangeable
M28754/7-03Interchangeable
interchangeable cross-reference
interchangeable
77C721023P001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30751331-503?
30751331-503 is a O-RING.
What parts can replace 30751331-503?
There are 12 known substitutes for 30751331-503: 23KP890, 4-32163-601X, 2116348 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30751331-503?
30751331-503 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-053-1944. This indicates validated use in U.S. government and defense supply chains.
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