979-1B270 — SPRING,HELICAL,EXTENSION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

979-1B270: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL UNS K08500 OVERALL, end_style: SHORT TWISTED HOOK BOTH ENDS, design_type: CLOSED, hook_radius: 0.219 INCHES NOMINAL SECOND END IN, inside_diameter: 0.498 INCHES NOMINAL IN, style_designator: CYLINDRICAL. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-316-4489, 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

979-1B270

NSN: 5360-00-316-4489
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 00607 — GAP INSTRUMENT CORP (USA)

SPECIFICATIONS

material	STEEL UNS K08500 OVERALL
end_style	SHORT TWISTED HOOK BOTH ENDS
design_type	CLOSED
hook_radius	0.219 INCHES NOMINAL SECOND END IN
coil_quantity	9
inside_diameter	0.498 INCHES NOMINAL IN
style_designator	CYLINDRICAL
spring_free_length	1.940 INCHES NOMINAL IN
coil_helix_direction	RIGHT-HAND
coil_to_hook_inside_length	0.312 INCHES NOMINAL FIRST END IN
spring_free_outside_diameter	0.688 INCHES NOMINAL IN
material_document_and_classification	QQ-W-470A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A
NSN	5360-00-316-4489

COMPONENT DIAGRAM

KEY FEATURES

•

SPRING FREE OUTSIDE DIAMETER: 0.688 INCHES NOMINAL IN

•

END STYLE: SHORT TWISTED HOOK BOTH ENDS

•

DESIGN TYPE: CLOSED

•

STYLE DESIGNATOR: CYLINDRICAL

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A

•

SPRING FREE LENGTH: 1.940 INCHES NOMINAL IN

•

COIL TO HOOK INSIDE LENGTH: 0.438 INCHES NOMINAL SECOND END IN

TECHNICAL CHARACTERISTICS

SPRING FREE OUTSIDE DIAMETER	0.688 INCHES NOMINAL IN
END STYLE	SHORT TWISTED HOOK BOTH ENDS
DESIGN TYPE	CLOSED
STYLE DESIGNATOR	CYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-W-470A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A
SPRING FREE LENGTH	1.940 INCHES NOMINAL IN
COIL TO HOOK INSIDE LENGTH	0.438 INCHES NOMINAL SECOND END IN
COIL TO HOOK INSIDE LENGTH	0.312 INCHES NOMINAL FIRST END IN
INSIDE DIAMETER	0.498 INCHES NOMINAL IN
COIL QUANTITY	9

SUBSTITUTES & CROSS-REFERENCES 3

B21205Reference document

Same NSN cross-reference

Reference document — Secondary reference

206-135Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

8341-11Reference document

Same NSN cross-reference

Reference document — Design control — primary 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 979-1B270?

979-1B270 is a SPRING,HELICAL,EXTENSION.

What parts can replace 979-1B270?

There are 3 known substitutes for 979-1B270: B21205, 206-135, 8341-11. Substitute compatibility should be verified for your specific system.

What is the NSN for 979-1B270?

979-1B270 is cataloged in the U.S. Government catalog under NSN 5360-00-316-4489. This indicates validated use in U.S. government and defense supply chains.

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