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Technical Data Sheet
PartsTable / O-RING / US8-8
US8-8 ✓ 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

SWITCH,ENGINE STARTER,ELECTRICAL. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 2.484 INCHES NOMINAL IN, cross-sectional_height: 0.139 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-054-6866, 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
US8-8
NSN: 5331-00-054-6866
FSC: 5331 — O-RING
CAGE: 78912 — GARLOCK INC VALVES AND INDUSTRIAL PLASTICS DIV SUB OF COLTEC INDUSTRIES INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter2.484 INCHES NOMINAL IN
cross-sectional_height0.139 INCHES NOMINAL IN
NSN5331-00-054-6866
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: US8-8 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 BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 2.484 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER2.484 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
69010020Interchangeable
interchangeable cross-reference
interchangeable
SA-43Interchangeable
interchangeable cross-reference
interchangeable
154805Interchangeable
interchangeable cross-reference
interchangeable
SAE-J530Interchangeable
interchangeable cross-reference
interchangeable
1732160Interchangeable
interchangeable cross-reference
interchangeable
0716-MM5-T03Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is US8-8?
US8-8 is a SWITCH,ENGINE STARTER,ELECTRICAL.
What parts can replace US8-8?
There are 34 known substitutes for US8-8: 69010020, SA-43, 154805 and 31 more. Substitute compatibility should be verified for your specific system.
Is US8-8 still available?
US8-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026