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579R718H40 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

579R718H40: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL UNS K08500 OR STEEL COMP 1090 OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, bore_diameter: 0.375 INCHES NOMINAL IN, inside_diameter: 0.296 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5360-01-004-9765, 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
579R718H40
NSN: 5360-01-004-9765
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 48306 — NORTHROP GRUMMAN SUPPORT SERVICES CORP (USA)
SPECIFICATIONS
materialSTEEL UNS K08500 OR STEEL COMP 1090 OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
bore_diameter0.375 INCHES NOMINAL IN
inside_diameter0.296 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentCADMIUM AND CHROMATE OVERALL
spring_free_length2.000 INCHES NOMINAL IN
spring_solid_length0.421 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_deflection_rate4.000 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter0.360 INCHES NOMINAL IN
material_document_and_classificationQQ-W-470 FED SPEC 1ST MATERIAL RESPONSE OR AMS 5112 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN5360-01-004-9765
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 579R718H40 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.360 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING SOLID LENGTH: 0.421 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470 FED SPEC 1ST MATERIAL RESPONSE OR AMS 5112 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 2.000 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 4.000 POUNDS PER INCH NOMINAL LBS
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.360 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH0.421 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC 1ST MATERIAL RESPONSE OR AMS 5112 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH2.000 INCHES NOMINAL IN
SPRING DEFLECTION RATE4.000 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER0.296 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
OTHER ITEMS IN FSC 5360 — Coil, Flat, Leaf, and Wire Springs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5360-00-001-1842 5360-00-001-1945 5360-00-001-2010 5360-00-001-3865 5360-00-001-3950 5360-00-001-4650 5360-00-001-4664 5360-00-001-4703
SUBSTITUTES & CROSS-REFERENCES 1
LC-032E-15-MWReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 579R718H40?
579R718H40 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 579R718H40?
There is 1 known substitute for 579R718H40: LC-032E-15-MW. Substitute compatibility should be verified for your specific system.
What is the NSN for 579R718H40?
579R718H40 is cataloged in the U.S. Government catalog under NSN 5360-01-004-9765. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.