C7521-5-N8 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

C7521-5-N8: 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: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, head_height: 0.187 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 5306-01-260-7707, 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

C7521-5-N8

NSN: 5306-01-260-7707
FSC: 5306 — Bolts
CAGE: 92215 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS (USA)

SPECIFICATIONS

material	STEEL COMP H11 OVERALL
head_style	SPLINE DRIVE SHEAR HEAD
grip_length	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
head_height	0.187 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN
thread_length	0.413 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
surface_finish	32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length	0.923 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM AND CHROMATE THREADS
head_minor_diameter	0.605 INCHES MAXIMUM IN
NSN	5306-01-260-7707

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES THREADS

•

HEAD HEIGHT: 0.187 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.923 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE THREADS

•

THREAD LENGTH: 0.413 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT	0.187 INCHES NOMINAL IN
FASTENER LENGTH	0.923 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE THREADS
THREAD LENGTH	0.413 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	SPLINE DRIVE SHEAR HEAD

OTHER ITEMS IN FSC 5306 — Bolts

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017

SUBSTITUTES & CROSS-REFERENCES 5

H411-5-N8Reference document

Same NSN cross-reference

Reference document — Secondary reference

VCG0009-5-N8Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

VS3133-5-N8Reference document

Same NSN cross-reference

Reference document — Secondary reference

120978-5-N8Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

PBF7521-5-N8Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

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

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FREQUENTLY ASKED QUESTIONS

What is C7521-5-N8?

C7521-5-N8 is a BOLT,CLOSE TOLERANCE.

What parts can replace C7521-5-N8?

There are 5 known substitutes for C7521-5-N8: H411-5-N8, VCG0009-5-N8, VS3133-5-N8 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for C7521-5-N8?

C7521-5-N8 is cataloged in the U.S. Government catalog under NSN 5306-01-260-7707. This indicates validated use in U.S. government and defense supply chains.

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