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91641879 — HARDWARE KIT,MECHANIC EQUIPMENT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

91641879: HARDWARE KIT,MECHANIC EQUIPMENT.

HARDWARE KIT,MECHANIC EQUIPMENT. Key specifications include specification/standard_data: 66503-25803-138 MANUFACTURERS STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-345-2007, 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
91641879
NSN: 5340-01-345-2007
FSC: 5340 — Hardware, Commercial
CAGE: F6481 — THALES SA (FRA)
SPECIFICATIONS
specification/standard_data66503-25803-138 MANUFACTURERS STANDARD
NSN5340-01-345-2007
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 91641879 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
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SPECIFICATION/STANDARD DATA: 66503-25803-138 MANUFACTURERS STANDARD
TECHNICAL CHARACTERISTICS
SPECIFICATION/STANDARD DATA66503-25803-138 MANUFACTURERS STANDARD
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
25803-138Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91641879?
91641879 is a HARDWARE KIT,MECHANIC EQUIPMENT.
What parts can replace 91641879?
There is 1 known substitute for 91641879: 25803-138. Substitute compatibility should be verified for your specific system.
What is the NSN for 91641879?
91641879 is cataloged in the U.S. Government catalog under NSN 5340-01-345-2007. This indicates validated use in U.S. government and defense supply chains.
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