PBF7521-9-65 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

PBF7521-9-65: 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: 4.052 INCHES MINIMUM AND 4.072 INCHES MAXIMUM IN, head_height: 0.328 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.561 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-336-6320, 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

PBF7521-9-65

NSN: 5306-01-336-6320
FSC: 5306 — Bolts
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL COMP H11 OVERALL
head_style	SPLINE DRIVE SHEAR HEAD
grip_length	4.052 INCHES MINIMUM AND 4.072 INCHES MAXIMUM IN
head_height	0.328 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.561 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
thread_length	0.563 INCHES NOMINAL IN
fastener_length	4.641 INCHES MINIMUM AND 4.671 INCHES MAXIMUM IN
special_features	MIN TENSILE STRENGTH 39,200 PSI: MIN SHEAR STRENGTH 132,000 PSI:MIN DOUBLE SHEAR STRENGTH 65,600 PSI
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
head_minor_diameter	1.049 INCHES NOMINAL IN
NSN	5306-01-336-6320

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.328 INCHES NOMINAL IN

•

FASTENER LENGTH: 4.641 INCHES MINIMUM AND 4.671 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.563 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.5630 INCHES IN

•

HEAD STYLE: SPLINE DRIVE SHEAR HEAD

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.328 INCHES NOMINAL IN
FASTENER LENGTH	4.641 INCHES MINIMUM AND 4.671 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.563 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.5630 INCHES IN
HEAD STYLE	SPLINE DRIVE SHEAR HEAD
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	4.052 INCHES MINIMUM AND 4.072 INCHES MAXIMUM IN
HEAD MINOR DIAMETER	1.049 INCHES NOMINAL IN

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 2

H411-9-65Reference document

Same NSN cross-reference

Reference document — Secondary reference

5306-002-9-65Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is PBF7521-9-65?

PBF7521-9-65 is a BOLT,CLOSE TOLERANCE.

What parts can replace PBF7521-9-65?

There are 2 known substitutes for PBF7521-9-65: H411-9-65, 5306-002-9-65. Substitute compatibility should be verified for your specific system.

What is the NSN for PBF7521-9-65?

PBF7521-9-65 is cataloged in the U.S. Government catalog under NSN 5306-01-336-6320. This indicates validated use in U.S. government and defense supply chains.

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