8756377 — BOLT,RIBBED SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

8756377: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1340 OR STEEL COMP 5140 OR STEEL COMP 8630 OR STEEL COMP 4140 OVERALL, head_style: PAN NO. 2, rib_length: 0.688 INCHES NOMINAL IN, head_height: 0.281 INCHES NOMINAL IN, rib_quantity: 40, thread_class: 2A A.

This part is cataloged in the U.S. Government catalog under NSN 5306-00-679-9828, 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

8756377

NSN: 5306-00-679-9828
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 1340 OR STEEL COMP 5140 OR STEEL COMP 8630 OR STEEL COMP 4140 OVERALL
head_style	PAN NO. 2
rib_length	0.688 INCHES NOMINAL IN
head_height	0.281 INCHES NOMINAL IN
rib_quantity	40
thread_class	2A A
head_diameter	0.938 INCHES NOMINAL IN
thread_length	1.625 INCHES MINIMUM IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	2.938 INCHES NOMINAL IN
hardness_rating	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length	0.750 INCHES NOMINAL FIRST SHOULDER IN
NSN	5306-00-679-9828

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.281 INCHES NOMINAL IN

•

FASTENER LENGTH: 2.938 INCHES NOMINAL IN

•

SHOULDER LENGTH: 0.750 INCHES NOMINAL FIRST SHOULDER IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS: 0.062 INCHES NOMINAL IN

•

SHOULDER DIAMETER: 0.651 INCHES MINIMUM AND 0.656 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 1.625 INCHES MINIMUM IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.281 INCHES NOMINAL IN
FASTENER LENGTH	2.938 INCHES NOMINAL IN
SHOULDER LENGTH	0.750 INCHES NOMINAL FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS	0.062 INCHES NOMINAL IN
SHOULDER DIAMETER	0.651 INCHES MINIMUM AND 0.656 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	1.625 INCHES MINIMUM IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM-A304 ASSN STD ALL MATERIAL RESPONSES OVERALL

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 1

5306006799828Reference 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 8756377?

8756377 is a BOLT,RIBBED SHOULDER.

What parts can replace 8756377?

There is 1 known substitute for 8756377: 5306006799828. Substitute compatibility should be verified for your specific system.

What is the NSN for 8756377?

8756377 is cataloged in the U.S. Government catalog under NSN 5306-00-679-9828. This indicates validated use in U.S. government and defense supply chains.

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