A51B28538-13 — BOLT,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

A51B28538-13: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, head_style: HEXAGON, head_height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.300 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-004-7057, 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

A51B28538-13

NSN: 5306-00-004-7057
FSC: 5306 — Bolts
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

material	STEEL COMP 321 OVERALL
head_style	HEXAGON
head_height	0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
thread_class	3A A
thread_length	0.300 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	1.284 INCHES NOMINAL IN
shoulder_length	0.912 INCHES MINIMUM AND 0.922 INCHES MAXIMUM FIRST SHOULDER IN
thread_direction	RIGHT-HAND
shoulder_diameter	0.2460 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatment	PASSIVATE OVERALL
width_between_flats	0.434 INCHES NOMINAL IN
NSN	5306-00-004-7057

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.284 INCHES NOMINAL IN

•

SHOULDER LENGTH: 0.912 INCHES MINIMUM AND 0.922 INCHES MAXIMUM FIRST SHOULDER IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5000 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

SHOULDER DIAMETER: 0.2460 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.300 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

•

SHANK UNTHREADED HOLE DIAMETER: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
FASTENER LENGTH	1.284 INCHES NOMINAL IN
SHOULDER LENGTH	0.912 INCHES MINIMUM AND 0.922 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER	0.2460 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.300 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES IN

OTHER ITEMS IN FSC 5306 — Bolts

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

5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 A51B28538-13?

A51B28538-13 is a BOLT,SHOULDER.

What is the NSN for A51B28538-13?

A51B28538-13 is cataloged in the U.S. Government catalog under NSN 5306-00-004-7057. This indicates validated use in U.S. government and defense supply chains.

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A51B28538-13 — BOLT,SHOULDER

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