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B21515 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B21515: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, inside_diameter: 1.474 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 4.875 INCHES NOMINAL IN, spring_free_outside_diameter: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-306-1548, 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
B21515
NSN: 5360-00-306-1548
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 16603 — CONTROL FLOW, INC. DBA WESTECH HEAVY MACHINERY DIVISION DIV WESTECH HEAVY MACHINERY DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
inside_diameter1.474 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length4.875 INCHES NOMINAL IN
spring_free_outside_diameter2.000 INCHES NOMINAL IN
material_document_and_classificationQQ-W-465,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5360-00-306-1548
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN B21515 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-465,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 4.875 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.474 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-465,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH4.875 INCHES NOMINAL IN
INSIDE DIAMETER1.474 INCHES NOMINAL IN
MATERIALSTEEL 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
N966PC61Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B21515?
B21515 is a SPRING,HELICAL,COMPRESSION.
What parts can replace B21515?
There is 1 known substitute for B21515: N966PC61. Substitute compatibility should be verified for your specific system.
What is the NSN for B21515?
B21515 is cataloged in the U.S. Government catalog under NSN 5360-00-306-1548. 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.