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Technical Data Sheet
PartsTable / O-RING / E-8709935 PIECE 90
E-8709935 PIECE 90 ✓ 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 5331-01-137-6895, 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
E-8709935 PIECE 90
NSN: 5331-01-137-6895
FSC: 5331 — O-RING
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
Part NumberE-8709935 PIECE 90
NSN5331-01-137-6895
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: E-8709935 PIECE 90 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 7
421-50Interchangeable
interchangeable cross-reference
interchangeable
1093-668Interchangeable
interchangeable cross-reference
interchangeable
25305Interchangeable
interchangeable cross-reference
interchangeable
350A316Interchangeable
interchangeable cross-reference
interchangeable
9021749Interchangeable
interchangeable cross-reference
interchangeable
CS-3000-TLA 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 E-8709935 PIECE 90?
E-8709935 PIECE 90 is a O-RING.
What parts can replace E-8709935 PIECE 90?
There are 7 known substitutes for E-8709935 PIECE 90: 421-50, 1093-668, 25305 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E-8709935 PIECE 90?
E-8709935 PIECE 90 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-137-6895. 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