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Technical Data Sheet
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8951LUP — SEAL ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8951LUP: SEAL ASSEMBLY.

The SEAL ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-022-0943, 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
8951LUP
NSN: 5330-01-022-0943
NIINs: 010220943, 012781769
FSC: 5330 — Packing and Gasket Materials
CAGE: 75165 — JOHNS MANVILLE INTL (USA)
SPECIFICATIONS
Part Number8951LUP
NSN5330-01-022-0943
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8951LUP 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
SUBSTITUTES & CROSS-REFERENCES 1
2D3-978 ITEM 77Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8951LUP?
8951LUP is a SEAL ASSEMBLY.
What parts can replace 8951LUP?
There is 1 known substitute for 8951LUP: 2D3-978 ITEM 77. Substitute compatibility should be verified for your specific system.
What is the NSN for 8951LUP?
8951LUP is cataloged in the U.S. Government catalog under NSN 5330-01-022-0943. This indicates validated use in U.S. government and defense supply chains.
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