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Technical Data Sheet
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MA207-21543 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MA207-21543: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. This part is cataloged in the U.S. Government catalog under NSN 5340-01-160-2437, 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
MA207-21543
NSN: 5340-01-160-2437
FSC: 5340 — Hardware, Commercial
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
Part NumberMA207-21543
NSN5340-01-160-2437
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MA207-21543 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
46358Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MA207-21543?
MA207-21543 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace MA207-21543?
There is 1 known substitute for MA207-21543: 46358. Substitute compatibility should be verified for your specific system.
What is the NSN for MA207-21543?
MA207-21543 is cataloged in the U.S. Government catalog under NSN 5340-01-160-2437. This indicates validated use in U.S. government and defense supply chains.
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