C7521 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

C7521: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: SPLINE DRIVE SHEAR HEAD, grip_length: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN, head_height: 0.167 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 6350-00-757-9996, 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

C7521

NSN: 6350-00-757-9996
NIINs: 007579996, 010515908
FSC: 6350 — Miscellaneous Alarm, Signal, and Security Detection Systems
CAGE: 82268 — SPARTON CORPORATION DIV SPARTON ELECTRONICS (USA)

SPECIFICATIONS

material	STEEL COMP H11 OVERALL
head_style	SPLINE DRIVE SHEAR HEAD
grip_length	0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
head_height	0.167 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN
hole_diameter	0.273 INCHES NOMINAL IN
overall_width	2.312 INCHES NOMINAL IN
terminal_type	SCREW
thread_length	0.413 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
overall_height	6.062 INCHES NOMINAL IN
overall_length	5.000 INCHES NOMINAL IN
NSN	6350-00-757-9996

COMPONENT DIAGRAM

KEY FEATURES

•

MOUNTING HOLE/STUD QUANTITY: 2

•

TERMINAL QUANTITY: 2

•

TERMINAL TYPE: SCREW

•

SOUND PROJECTOR QUANTITY: 1

•

SOUND PROJECTOR TYPE: DIAPHRAGM

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	6.062 INCHES NOMINAL IN
MOUNTING HOLE/STUD QUANTITY	2
TERMINAL QUANTITY	2
TERMINAL TYPE	SCREW
SOUND PROJECTOR QUANTITY	1
SOUND PROJECTOR TYPE	DIAPHRAGM
OVERALL LENGTH	5.000 INCHES NOMINAL IN
OVERALL WIDTH	2.312 INCHES NOMINAL IN
MOUNTING BRACKET	PROVIDED
END ITEM IDENTIFICATION	3930-00-181-3217; TRACTOR,WHEELED,WAREHOUSE

SUBSTITUTES & CROSS-REFERENCES 3

31976Reference document

Same NSN cross-reference

Reference document — Secondary reference

A24427Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

1001-510Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is C7521?

C7521 is a BOLT,CLOSE TOLERANCE.

What parts can replace C7521?

There are 3 known substitutes for C7521: 31976, A24427, 1001-510. Substitute compatibility should be verified for your specific system.

What is the NSN for C7521?

C7521 is cataloged in the U.S. Government catalog under NSN 6350-00-757-9996. This indicates validated use in U.S. government and defense supply chains.

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