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US-88 — SWITCH,ENGINE STARTER,ELECTRICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

US-88: SWITCH,ENGINE STARTER,ELECTRICAL.

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 U.S.

Government catalog 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
US-88
NSN: 5331-00-054-6866
NIINs: 000546866, 010346891
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: US-88 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
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 2.484 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
CENTER HOLE DIAMETER2.484 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 9
2900-137ALT2PC11Reference document
Same NSN cross-reference
Reference document — Secondary reference
3055-108ALT1PCC3Reference document
Same NSN cross-reference
Reference document — Secondary reference
3068-147PCR3Reference document
Same NSN cross-reference
Reference document — Secondary reference
546866Reference document
Same NSN cross-reference
Reference document — Secondary reference
3068-146PCR3Reference document
Same NSN cross-reference
Reference document — Secondary reference
12M400Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is US-88?
US-88 is a SWITCH,ENGINE STARTER,ELECTRICAL.
What parts can replace US-88?
There are 9 known substitutes for US-88: 2900-137ALT2PC11, 3055-108ALT1PCC3, 3068-147PCR3 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for US-88?
US-88 is cataloged in the U.S. Government catalog under NSN 5331-00-054-6866. This indicates validated use in U.S. government and defense supply chains.
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