PartsTable
Technical Data Sheet
7250121-018 ✓ 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 5331-01-585-6219, 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
7250121-018
NSN: 5331-01-585-6219
FSC: 5331 — O-RING
CAGE: 47WD8 — EVAC NORTH AMERICA INC (USA)
SPECIFICATIONS
Part Number7250121-018
NSN5331-01-585-6219
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7250121-018 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 27
7250121Interchangeable
interchangeable cross-reference
interchangeable
1BN0507Interchangeable
interchangeable cross-reference
interchangeable
V100-128QHDM0F2VAA W/VAC LOBESInterchangeable
interchangeable cross-reference
interchangeable
7250121 004Interchangeable
interchangeable cross-reference
interchangeable
DAD.D001Interchangeable
interchangeable cross-reference
interchangeable
7250121 REV B ITEM NO 4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7250121-018?
7250121-018 is a O-RING.
What parts can replace 7250121-018?
There are 27 known substitutes for 7250121-018: 7250121, 1BN0507, V100-128QHDM0F2VAA W/VAC LOBES and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7250121-018?
7250121-018 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-585-6219. This indicates validated use in U.S. government and defense supply chains.
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