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Technical Data Sheet
PartsTable / COMPONENT / 170521ITEM1C
170521ITEM1C ✓ 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: SHORT LOOP BOTH ENDS, design_type: CLOSED, hook_radius: 0.069 INCHES NOMINAL BOTH ENDS IN, coil_quantity: 16, inside_diameter: 0.189 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-316-3486, 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
170521ITEM1C
NSN: 5360-00-316-3486
FSC: 5360
CAGE: 63743 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSHORT LOOP BOTH ENDS
design_typeCLOSED
hook_radius0.069 INCHES NOMINAL BOTH ENDS IN
coil_quantity16
inside_diameter0.189 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length0.625 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_free_outside_diameter0.225 INCHES NOMINAL IN
NSN5360-00-316-3486
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 170521ITEM1C MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
INSIDE DIAMETER: 0.189 INCHES NOMINAL IN
•
COIL HELIX DIRECTION: RIGHT-HAND
•
COIL QUANTITY: 16
•
DESIGN TYPE: CLOSED
•
SPRING FREE OUTSIDE DIAMETER: 0.225 INCHES NOMINAL IN
•
END STYLE: SHORT LOOP BOTH ENDS
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.189 INCHES NOMINAL IN
COIL HELIX DIRECTIONRIGHT-HAND
COIL QUANTITY16
DESIGN TYPECLOSED
SPRING FREE OUTSIDE DIAMETER0.225 INCHES NOMINAL IN
END STYLESHORT LOOP BOTH ENDS
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH0.625 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOOK RADIUS0.069 INCHES NOMINAL BOTH ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
20258439Interchangeable
interchangeable cross-reference
interchangeable
102548Interchangeable
interchangeable cross-reference
interchangeable
202528439-01Interchangeable
interchangeable cross-reference
interchangeable
10106066-25Interchangeable
interchangeable cross-reference
interchangeable
1A1501MInterchangeable
interchangeable cross-reference
interchangeable
40-030024-27Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 170521ITEM1C?
170521ITEM1C is a SPRING,HELICAL,EXTENSION.
What parts can replace 170521ITEM1C?
There are 11 known substitutes for 170521ITEM1C: 20258439, 102548, 202528439-01 and 8 more. Substitute compatibility should be verified for your specific system.
Is 170521ITEM1C still available?
170521ITEM1C is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026