B18.3.1M — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

B18.3.1M: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 12.9 OVERALL, head_style: FLAT CHAMFER, head_height: 11.7 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM MM, chamfer_angle: 0.6 RADIANS MAXIMUM, head_diameter: 17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM MM, thread_length: 36.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-122-9634, 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

B18.3.1M

NSN: 5305-01-122-9634
NIINs: 011229634, 011247057, 015038430, 016229391, 016273970, 016461663, 016461677, 016461686, 016461699, 016461780, 016461807, 016461866, 016462239, 016466862, 016467134
FSC: 5305 — Screws
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)

SPECIFICATIONS

material	STEEL PROPERTY CLASS 12.9 OVERALL
head_style	FLAT CHAMFER
head_height	11.7 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM MM
chamfer_angle	0.6 RADIANS MAXIMUM
head_diameter	17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM MM
thread_length	36.0 MILLIMETERS NOMINAL MM
fastener_length	65.0 MILLIMETERS NOMINAL MM
locking_feature	PELLET OR STRIP OR PATCH THREADS
thread_direction	RIGHT-HAND
surface_treatment	BLACK CHEMICAL FINISH AND OXIDE OVERALL
width_across_flats	10.0 MILLIMETERS MINIMUM MM
internal_drive_style	HEXAGON
NSN	5305-01-122-9634

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 1

B18-3-1AH060020DSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B18.3.1M?

B18.3.1M is a SCREW,CAP,SOCKET HEAD.

What parts can replace B18.3.1M?

There is 1 known substitute for B18.3.1M: B18-3-1AH060020D. Substitute compatibility should be verified for your specific system.

What is the NSN for B18.3.1M?

B18.3.1M is cataloged in the U.S. Government catalog under NSN 5305-01-122-9634. This indicates validated use in U.S. government and defense supply chains.

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