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Technical Data Sheet
PartsTable / COMPONENT / 16571-21-1
16571-21-1 ✓ 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,COMPRESSION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 511 OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, inside_diameter: 0.190 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 0.812 INCHES NOMINAL IN, spring_solid_length: 0.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-303-1183, 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
16571-21-1
NSN: 5360-00-303-1183
FSC: 5360
CAGE: 63743 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 511 OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity9
inside_diameter0.190 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length0.812 INCHES NOMINAL IN
spring_solid_length0.500 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_free_outside_diameter0.258 INCHES NOMINAL IN
spring_solid_outside_diameter0.258 INCHES NOMINAL IN
NSN5360-00-303-1183
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 16571-21-1 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING FREE LENGTH: 0.812 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL: COPPER ALLOY 511 OVERALL
•
SPRING SOLID OUTSIDE DIAMETER: 0.258 INCHES NOMINAL IN
•
SPRING FREE OUTSIDE DIAMETER: 0.258 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.190 INCHES NOMINAL IN
•
SPRING SOLID LENGTH: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING FREE LENGTH0.812 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
MATERIALCOPPER ALLOY 511 OVERALL
SPRING SOLID OUTSIDE DIAMETER0.258 INCHES NOMINAL IN
SPRING FREE OUTSIDE DIAMETER0.258 INCHES NOMINAL IN
INSIDE DIAMETER0.190 INCHES NOMINAL IN
SPRING SOLID LENGTH0.500 INCHES NOMINAL IN
COIL QUANTITY9
COIL HELIX DIRECTIONRIGHT-HAND OR LEFT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2511 1-39/64Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751 TYEInterchangeable
interchangeable cross-reference
interchangeable
25215Interchangeable
interchangeable cross-reference
interchangeable
P-B-172Interchangeable
interchangeable cross-reference
interchangeable
21562Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 16571-21-1?
16571-21-1 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 16571-21-1?
There are 8 known substitutes for 16571-21-1: 2511 1-39/64, GGG-D-751, GGG-D-751 TYE and 5 more. Substitute compatibility should be verified for your specific system.
Is 16571-21-1 still available?
16571-21-1 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