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199971 PC-12 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

199971 PC-12: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include end_style: SHORT LOOP BOTH ENDS, design_type: OPEN, hook_radius: 0.152 INCHES NOMINAL BOTH ENDS IN, coil_quantity: 14, inside_diameter: 0.313 INCHES NOMINAL IN, style_designator: CYLINDRICAL. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-209-9171, 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
199971 PC-12
NSN: 5360-00-209-9171
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_styleSHORT LOOP BOTH ENDS
design_typeOPEN
hook_radius0.152 INCHES NOMINAL BOTH ENDS IN
coil_quantity14
inside_diameter0.313 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentCADMIUM OVERALL
spring_free_length1.000 INCHES NOMINAL IN
coil_helix_directionLEFT-HAND
spring_free_outside_diameter0.385 INCHES NOMINAL IN
material_document_and_classificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5360-00-209-9171
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 199971 PC-12 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.385 INCHES NOMINAL IN
•
END STYLE: SHORT LOOP BOTH ENDS
•
DESIGN TYPE: OPEN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 1.000 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.313 INCHES NOMINAL IN
•
COIL QUANTITY: 14
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.385 INCHES NOMINAL IN
END STYLESHORT LOOP BOTH ENDS
DESIGN TYPEOPEN
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH1.000 INCHES NOMINAL IN
INSIDE DIAMETER0.313 INCHES NOMINAL IN
COIL QUANTITY14
SURFACE TREATMENTCADMIUM OVERALL
COIL HELIX DIRECTIONLEFT-HAND
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

No substitute or cross-reference records for this part.

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 199971 PC-12?
199971 PC-12 is a SPRING,HELICAL,EXTENSION.
What is the NSN for 199971 PC-12?
199971 PC-12 is cataloged in the U.S. Government catalog under NSN 5360-00-209-9171. 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.