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Technical Data Sheet
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M25988-1-160 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M25988-1-160: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include end_item_identification: OIL COOLER, FUEL COOLED, part_name_assigned_by_controlling_agency: RING, SEALING TOROIDAL. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-620-5960, 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
M25988-1-160
NSN: 5331-01-620-5960
FSC: 5331 — O-ring
CAGE: 1UGG4 — SUMITOMO PRECISION USA, INC. (USA)
SPECIFICATIONS
end_item_identificationOIL COOLER, FUEL COOLED
part_name_assigned_by_controlling_agencyRING, SEALING TOROIDAL
NSN5331-01-620-5960
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M25988-1-160 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYRING, SEALING TOROIDAL
END ITEM IDENTIFICATIONOIL COOLER, FUEL COOLED
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
5331PL1740078Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M25988-1-160?
M25988-1-160 is a O-RING.
What parts can replace M25988-1-160?
There is 1 known substitute for M25988-1-160: 5331PL1740078. Substitute compatibility should be verified for your specific system.
What is the NSN for M25988-1-160?
M25988-1-160 is cataloged in the U.S. Government catalog under NSN 5331-01-620-5960. This indicates validated use in U.S. government and defense supply chains.
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