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Technical Data Sheet
PartsTable / O-RING / AMS-R-25988-2.948
AMS-R-25988-2.948 ✓ 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 AMS-R-25988-2.948 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 5331-00-069-5189, 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
AMS-R-25988-2.948
NSN: 5331-00-069-5189
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
Part NumberAMS-R-25988-2.948
NSN5331-00-069-5189
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AMS-R-25988-2.948 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
•
MATERIAL: RUBBER SYNTHETIC
•
CENTER HOLE DIAMETER: 2.926 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
CENTER HOLE DIAMETER2.926 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2948Interchangeable
interchangeable cross-reference
interchangeable
12A43Interchangeable
interchangeable cross-reference
interchangeable
580R021H02Interchangeable
interchangeable cross-reference
interchangeable
GIT-2948Interchangeable
interchangeable cross-reference
interchangeable
506-2978-002Interchangeable
interchangeable cross-reference
interchangeable
5465469Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AMS-R-25988-2.948?
AMS-R-25988-2.948 is a AMS-R-25988-2.948.
What parts can replace AMS-R-25988-2.948?
There are 12 known substitutes for AMS-R-25988-2.948: 2948, 12A43, 580R021H02 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AMS-R-25988-2.948?
AMS-R-25988-2.948 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-069-5189. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026