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Technical Data Sheet
PartsTable / O-RING / DR159/68 ITEM-8
DR159/68 ITEM-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

The DR159/68 ITEM-8 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 5331-01-322-6921, 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
DR159/68 ITEM-8
NSN: 5331-01-322-6921
FSC: 5331 — O-RING
CAGE: 0JKF4 — ULSTEIN USA INC (USA)
SPECIFICATIONS
Part NumberDR159/68 ITEM-8
NSN5331-01-322-6921
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DR159/68 ITEM-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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
FC2003Interchangeable
interchangeable cross-reference
interchangeable
1025-6Interchangeable
interchangeable cross-reference
interchangeable
701197Interchangeable
interchangeable cross-reference
interchangeable
SM-B-650699-2Interchangeable
interchangeable cross-reference
interchangeable
559967Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DR159/68 ITEM-8?
DR159/68 ITEM-8 is a DR159/68 ITEM-8.
What parts can replace DR159/68 ITEM-8?
There are 18 known substitutes for DR159/68 ITEM-8: FC2003, 1025-6, 701197 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DR159/68 ITEM-8?
DR159/68 ITEM-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-322-6921. 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