N8231 — BOLT,RIBBED SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

N8231: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1335 OR STEEL COMP 1541 OVERALL, head_style: DEE, rib_length: 0.260 INCHES NOMINAL IN, head_height: 0.188 INCHES NOMINAL IN, rib_quantity: 33, thread_class: 2A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-679-8109, 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

N8231

NSN: 5306-00-679-8109
FSC: 5306 — Bolts
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)

SPECIFICATIONS

material	STEEL COMP 1335 OR STEEL COMP 1541 OVERALL
head_style	DEE
rib_length	0.260 INCHES NOMINAL IN
head_height	0.188 INCHES NOMINAL IN
rib_quantity	33
thread_class	2A A
head_diameter	0.624 INCHES NOMINAL IN
thread_length	0.830 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN
shoulder_shape	RIBBED FIRST SHOULDER
fastener_length	1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN
hardness_rating	32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length	0.320 INCHES NOMINAL FIRST SHOULDER IN
NSN	5306-00-679-8109

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.188 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN

•

SHOULDER LENGTH: 0.320 INCHES NOMINAL FIRST SHOULDER IN

•

DISTANCE FROM CENTERLINE TO FLAT: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN

•

DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS: 0.030 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN

•

SHOULDER DIAMETER: 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.830 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN

•

SHOULDER SHAPE: RIBBED FIRST SHOULDER

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.188 INCHES NOMINAL IN
FASTENER LENGTH	1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN
SHOULDER LENGTH	0.320 INCHES NOMINAL FIRST SHOULDER IN
DISTANCE FROM CENTERLINE TO FLAT	0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS	0.030 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
SHOULDER DIAMETER	0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.830 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN
SHOULDER SHAPE	RIBBED FIRST SHOULDER
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD ALL MATERIAL RESPONSES OVERALL

SUBSTITUTES & CROSS-REFERENCES 3

7710675Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

6755988Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

A12695Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 N8231?

N8231 is a BOLT,RIBBED SHOULDER.

What parts can replace N8231?

There are 3 known substitutes for N8231: 7710675, 6755988, A12695. Substitute compatibility should be verified for your specific system.

What is the NSN for N8231?

N8231 is cataloged in the U.S. Government catalog under NSN 5306-00-679-8109. This indicates validated use in U.S. government and defense supply chains.

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N8231 — BOLT,RIBBED SHOULDER

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