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Technical Data Sheet
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427-10543 — 427-10543

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

427-10543: 427-10543.

The 427-10543 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-454-9186, 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
427-10543
NSN: 5340-01-454-9186
FSC: 5340 — Hardware, Commercial
CAGE: 06721 — HALDEX BRAKE PRODUCTS CORPORATION (USA)
SPECIFICATIONS
Part Number427-10543
NSN5340-01-454-9186
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 427-10543 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
2170140Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 427-10543?
427-10543 is a 427-10543.
What parts can replace 427-10543?
There is 1 known substitute for 427-10543: 2170140. Substitute compatibility should be verified for your specific system.
What is the NSN for 427-10543?
427-10543 is cataloged in the U.S. Government catalog under NSN 5340-01-454-9186. This indicates validated use in U.S. government and defense supply chains.
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