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Technical Data Sheet
PartsTable / COMPONENT / 256-C
256-C ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: FULL LOOP BOTH ENDS, stock_diameter: 0.016 INCHES NOMINAL IN, inside_diameter: 0.218 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-01-358-3589, 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
256-C
NSN: 5360-01-358-3589
FSC: 5360
CAGE: 56988 — MATTHEW WARREN, INC. DBA CENTURY SPRING CORP. DIV CENTURY SPRING CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleFULL LOOP BOTH ENDS
stock_diameter0.016 INCHES NOMINAL IN
inside_diameter0.218 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentZINC OVERALL
spring_free_length2.532 INCHES NOMINAL IN
coil_helix_directionLEFT-HAND OR RIGHT-HAND
spring_deflection_rate0.050 POUNDS PER INCH NOMINAL LBS
end_item_identification2330-01-303-8832 M1000 CHETTL TRAILER
spring_free_outside_diameter0.250 INCHES NOMINAL IN
material_document_and_classificationASTM-A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5360-01-358-3589
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 256-C MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
INSIDE DIAMETER: 0.218 INCHES NOMINAL IN
•
STOCK DIAMETER: 0.016 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 0.050 POUNDS PER INCH NOMINAL LBS
•
SPRING FREE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
END STYLE: FULL LOOP BOTH ENDS
•
MATERIAL: STEEL OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.218 INCHES NOMINAL IN
STOCK DIAMETER0.016 INCHES NOMINAL IN
SPRING DEFLECTION RATE0.050 POUNDS PER INCH NOMINAL LBS
SPRING FREE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
END STYLEFULL LOOP BOTH ENDS
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
END ITEM IDENTIFICATION2330-01-303-8832 M1000 CHETTL TRAILER
SPRING FREE LENGTH2.532 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
2-70900-5Interchangeable
interchangeable cross-reference
interchangeable
C115Interchangeable
interchangeable cross-reference
interchangeable
5330-238000Interchangeable
interchangeable cross-reference
interchangeable
50301Interchangeable
interchangeable cross-reference
interchangeable
305-80Interchangeable
interchangeable cross-reference
interchangeable
517AS327Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 256-C?
256-C is a SPRING,HELICAL,EXTENSION.
What parts can replace 256-C?
There are 11 known substitutes for 256-C: 2-70900-5, C115, 5330-238000 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 256-C?
256-C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-01-358-3589. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026