138708 — SETSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

138708: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: OVAL, thread_class: 3A A, thread_length: 4.031 INCHES MAXIMUM IN, fastener_length: 3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-591-3353, 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

138708

NSN: 5305-00-591-3353
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	HEADLESS (SETSCREW)
point_style	OVAL
thread_class	3A A
thread_length	4.031 INCHES MAXIMUM IN
fastener_length	3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN
hardness_rating	45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
width_across_flats	0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.312 INCHES IN
thread_quantity_per_inch	24
NSN	5305-00-591-3353

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN

•

FASTENER LENGTH: 3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN

•

THREAD LENGTH: 4.031 INCHES MAXIMUM IN

•

HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

•

HEAD STYLE: HEADLESS (SETSCREW)

•

THREAD DIRECTION: RIGHT-HAND

•

POINT STYLE: OVAL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
FASTENER LENGTH	3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN
THREAD LENGTH	4.031 INCHES MAXIMUM IN
HARDNESS RATING	45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	HEADLESS (SETSCREW)
THREAD DIRECTION	RIGHT-HAND
POINT STYLE	OVAL
INTERNAL DRIVE STYLE	HEXAGON
THREAD CLASS	3A A

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 1

5305005913353Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 138708?

138708 is a SETSCREW.

What parts can replace 138708?

There is 1 known substitute for 138708: 5305005913353. Substitute compatibility should be verified for your specific system.

What is the NSN for 138708?

138708 is cataloged in the U.S. Government catalog under NSN 5305-00-591-3353. This indicates validated use in U.S. government and defense supply chains.

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