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40085121 — PARTS KIT,SEAL REPLACEMENT,MECHA

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

40085121: PARTS KIT,SEAL REPLACEMENT,MECHA.

PARTS KIT,SEAL REPLACEMENT,MECHA. This part is cataloged in the U.S. Government catalog under NSN 5330-01-432-5502, 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
40085121
NSN: 5330-01-432-5502
FSC: 5330 — Packing and Gasket Materials
CAGE: KCUC6 — MINISTRY OF DEFENCE, FUTURE AIRCRAFT CARRIER IPT (CVF IPT) (GBR)
SPECIFICATIONS
Part Number40085121
NSN5330-01-432-5502
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40085121 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 5
RF-BNHC-950-F-10E-1.1/16SEAL-KITSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
RF950-BUNA-SEAL-KITReference document
Same NSN cross-reference
Reference document — Design control — primary reference
RF950-SEAL-KIT- BUNAReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
303814Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
U80238602Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40085121?
40085121 is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What parts can replace 40085121?
There are 5 known substitutes for 40085121: RF-BNHC-950-F-10E-1.1/16SEAL-KIT, RF950-BUNA-SEAL-KIT, RF950-SEAL-KIT- BUNA and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40085121?
40085121 is cataloged in the U.S. Government catalog under NSN 5330-01-432-5502. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.