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NMM400557 REV B — TURNBUCKLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NMM400557 REV B: TURNBUCKLE.

The TURNBUCKLE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-725-3430, 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
NMM400557 REV B
NSN: 5340-01-725-3430
NIINs: 017253430, 017253433
FSC: 5340 — Hardware, Commercial
CAGE: 07309 — BIRD-JOHNSON PROPELLER COMPANY, LLC (USA)
SPECIFICATIONS
Part NumberNMM400557 REV B
NSN5340-01-725-3430
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NMM400557 REV B 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

No substitute or cross-reference records for this part.

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 NMM400557 REV B?
NMM400557 REV B is a TURNBUCKLE.
What is the NSN for NMM400557 REV B?
NMM400557 REV B is cataloged in the U.S. Government catalog under NSN 5340-01-725-3430. This indicates validated use in U.S. government and defense supply chains.
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