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740380-1 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

740380-1: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, special_features: MATL-STEEL HS279,CAGE 73030;NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-064-3301, 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
740380-1
NSN: 5340-01-064-3301
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
special_featuresMATL-STEEL HS279,CAGE 73030;NOT CASEHARDENED
NSN5340-01-064-3301
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 740380-1 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
•
DESIGN TYPE: SOLID
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
DESIGN TYPESOLID
SPECIAL FEATURESMATL-STEEL HS279,CAGE 73030;NOT CASEHARDENED
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
740380-2Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 740380-1?
740380-1 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 740380-1?
There is 1 known substitute for 740380-1: 740380-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 740380-1?
740380-1 is cataloged in the U.S. Government catalog under NSN 5340-01-064-3301. This indicates validated use in U.S. government and defense supply chains.
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