11643631-1 — BOLT,RIBBED SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

11643631-1: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OVERALL, head_style: DEE, rib_length: 0.420 INCHES NOMINAL IN, head_height: 0.380 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-419-9544, 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

11643631-1

NSN: 5306-00-419-9544
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 8740 OVERALL
head_style	DEE
rib_length	0.420 INCHES NOMINAL IN
head_height	0.380 INCHES NOMINAL IN
rib_quantity	1
thread_class	2A A
head_diameter	1.250 INCHES NOMINAL IN
thread_length	1.150 INCHES NOMINAL IN
shoulder_shape	RIBBED FIRST SHOULDER
fastener_length	2.810 INCHES NOMINAL IN
hardness_rating	33.0 ROCKWELL C NOMINAL OVERALL
shoulder_length	0.420 INCHES NOMINAL FIRST SHOULDER IN
NSN	5306-00-419-9544

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.380 INCHES NOMINAL IN

•

RIB INCLUDED ANGLE: 28.0 DEGREES NOMINAL

•

FASTENER LENGTH: 2.810 INCHES NOMINAL IN

•

SHOULDER LENGTH: 0.420 INCHES NOMINAL FIRST SHOULDER IN

•

DISTANCE FROM CENTERLINE TO FLAT: 0.510 INCHES NOMINAL IN

•

DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS: 0.230 INCHES NOMINAL IN

•

SHOULDER DIAMETER: 0.781 INCHES NOMINAL FIRST SHOULDER IN

•

THREAD LENGTH: 1.150 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.380 INCHES NOMINAL IN
RIB INCLUDED ANGLE	28.0 DEGREES NOMINAL
FASTENER LENGTH	2.810 INCHES NOMINAL IN
SHOULDER LENGTH	0.420 INCHES NOMINAL FIRST SHOULDER IN
DISTANCE FROM CENTERLINE TO FLAT	0.510 INCHES NOMINAL IN
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS	0.230 INCHES NOMINAL IN
SHOULDER DIAMETER	0.781 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH	1.150 INCHES NOMINAL IN
SHOULDER SHAPE	RIBBED FIRST SHOULDER
HARDNESS RATING	33.0 ROCKWELL C NOMINAL 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 2

5306004199544Reference document

Same NSN cross-reference

Reference document — Secondary reference

SW 5306-004199544Same 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 11643631-1?

11643631-1 is a BOLT,RIBBED SHOULDER.

What parts can replace 11643631-1?

There are 2 known substitutes for 11643631-1: 5306004199544, SW 5306-004199544. Substitute compatibility should be verified for your specific system.

What is the NSN for 11643631-1?

11643631-1 is cataloged in the U.S. Government catalog under NSN 5306-00-419-9544. This indicates validated use in U.S. government and defense supply chains.

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