SM-C-415027 — THUMBSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

SM-C-415027: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, head_style: THUMB NO. 3, head_height: 0.880 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.328 INCHES NOMINAL IN, fastener_length: 2.370 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-451-2924, 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

SM-C-415027

NSN: 5305-00-451-2924
NIINs: 004512924, 014743541
FSC: 5305 — Screws
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)

SPECIFICATIONS

material	STEEL COMP 630 OVERALL
head_style	THUMB NO. 3
head_height	0.880 INCHES NOMINAL IN
thread_class	2A A
thread_length	1.328 INCHES NOMINAL IN
fastener_length	2.370 INCHES NOMINAL IN
hardness_rating	34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM THREADS
special_features	ITEM SHALL WITHSTAND A MINIMUM TORQUE OF 500 IN-LBS IN ALL PLANES; HAS TWO DRILLED HOLES IN HEAD WITH THE DIAMETER OF 0.188 INCH, 1-INCH BETWEEN HOLE CENTERS IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_between_flats	1.500 INCHES NOMINAL IN
nominal_thread_diameter	0.312 INCHES IN
NSN	5305-00-451-2924

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD LENGTH: 1.328 INCHES MINIMUM IN

•

HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

•

THREAD DIRECTION: RIGHT-HAND

•

SURFACE TREATMENT: PASSIVATE OVERALL

•

THREAD QUANTITY PER INCH: 18

•

MATERIAL: STEEL CORROSION RESISTING OVERALL

•

THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)

TECHNICAL CHARACTERISTICS

THREAD LENGTH	1.328 INCHES MINIMUM IN
HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES IN
THREAD DIRECTION	RIGHT-HAND
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD QUANTITY PER INCH	18
MATERIAL	STEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

SUBSTITUTES & CROSS-REFERENCES 1

SMC454861Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is SM-C-415027?

SM-C-415027 is a THUMBSCREW.

What parts can replace SM-C-415027?

There is 1 known substitute for SM-C-415027: SMC454861. Substitute compatibility should be verified for your specific system.

What is the NSN for SM-C-415027?

SM-C-415027 is cataloged in the U.S. Government catalog under NSN 5305-00-451-2924. This indicates validated use in U.S. government and defense supply chains.

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