B2257 — SPRING,HELICAL,TORSION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

B2257: SPRING,HELICAL,TORSION.

The SPRING,HELICAL,TORSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, end_style: HINGE END OVERALL, inside_diameter: 0.346 INCHES NOMINAL IN, style_designator: SINGLE TORSION RIGHT HAND, surface_treatment: PASSIVATE OVERALL, center_section_width: 0.542 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-908-6310, 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

B2257

NSN: 5360-00-908-6310
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 17472 — EATON AEROSPACE LLC DBA EATON INOAC DIV FUEL & MOTION CONTROL SYSTEMS DIVISION (USA)

SPECIFICATIONS

material	STEEL COMP 302 OVERALL
end_style	HINGE END OVERALL
inside_diameter	0.346 INCHES NOMINAL IN
style_designator	SINGLE TORSION RIGHT HAND
surface_treatment	PASSIVATE OVERALL
center_section_width	0.542 INCHES NOMINAL IN
end_angular_relationship	ENDS PARALLEL ONE TO OTHER
spring_free_outside_diameter	0.404 INCHES NOMINAL IN
coil_axis_to_center_section_distance	0.625 INCHES NOMINAL IN
material_document_and_classification	FED STD 66 FED STD ALL MATERIAL RESPONSES OR AISI/SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5360-00-908-6310

COMPONENT DIAGRAM

KEY FEATURES

•

SPRING FREE OUTSIDE DIAMETER: 0.404 INCHES NOMINAL IN

•

END STYLE: HINGE END OVERALL

•

CENTER SECTION WIDTH: 0.542 INCHES NOMINAL IN

•

STYLE DESIGNATOR: SINGLE TORSION RIGHT HAND

•

MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED STD ALL MATERIAL RESPONSES OR AISI/SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

COIL AXIS TO CENTER SECTION DISTANCE: 0.625 INCHES NOMINAL IN

•

INSIDE DIAMETER: 0.346 INCHES NOMINAL IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

TECHNICAL CHARACTERISTICS

SPRING FREE OUTSIDE DIAMETER	0.404 INCHES NOMINAL IN
END STYLE	HINGE END OVERALL
CENTER SECTION WIDTH	0.542 INCHES NOMINAL IN
STYLE DESIGNATOR	SINGLE TORSION RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66 FED STD ALL MATERIAL RESPONSES OR AISI/SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
COIL AXIS TO CENTER SECTION DISTANCE	0.625 INCHES NOMINAL IN
INSIDE DIAMETER	0.346 INCHES NOMINAL IN
SURFACE TREATMENT	PASSIVATE OVERALL
MATERIAL	STEEL COMP 302 OVERALL
END ANGULAR RELATIONSHIP	ENDS PARALLEL ONE TO OTHER

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

9979115Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B2257?

B2257 is a SPRING,HELICAL,TORSION.

What parts can replace B2257?

There is 1 known substitute for B2257: 9979115. Substitute compatibility should be verified for your specific system.

What is the NSN for B2257?

B2257 is cataloged in the U.S. Government catalog under NSN 5360-00-908-6310. This indicates validated use in U.S. government and defense supply chains.

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B2257 — SPRING,HELICAL,TORSION

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