ASME B18.3-2003 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ASME B18.3-2003: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, head_height: 0.077 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.298 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, thread_length: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-165-5589, 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

ASME B18.3-2003

NSN: 5305-01-165-5589
NIINs: 011655589, 015619479, 015619780, 015619790, 015705862, 015708582, 015737666, 015743781, 015744758, 015751689, 015782245, 015782258
FSC: 5305 — Screws
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	BUTTON
head_height	0.077 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN
thread_class	2A A
head_diameter	0.298 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_length	0.500 INCHES NOMINAL IN
fastener_length	0.5 MILLIMETERS NOMINAL MM
locking_feature	STRIP LOCKING FEATURE
special_features	MATERIAL IS STAINLESS STEEL
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_across_flats	0.094 INCHES NOMINAL IN
NSN	5305-01-165-5589

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.311 INCHES MINIMUM AND 0.331 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.190 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN

•

THREAD LENGTH: 1.008 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN

•

NOMINAL THREAD DIAMETER: 0.625 INCHES IN

•

HEAD STYLE: ROUND

•

THREAD DIRECTION: RIGHT-HAND

•

INTERNAL DRIVE STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.375 INCHES NOMINAL IN
HEAD HEIGHT	0.311 INCHES MINIMUM AND 0.331 INCHES MAXIMUM IN
FASTENER LENGTH	1.190 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
THREAD LENGTH	1.008 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.625 INCHES IN
HEAD STYLE	ROUND
THREAD DIRECTION	RIGHT-HAND
INTERNAL DRIVE STYLE	HEXAGON
THREAD CLASS	3A A
THREAD QUANTITY PER INCH	11

SUBSTITUTES & CROSS-REFERENCES 2

3600-917Reference document

Same NSN cross-reference

Reference document — Secondary reference

ASME B18.24-2004Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

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

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FREQUENTLY ASKED QUESTIONS

What is ASME B18.3-2003?

ASME B18.3-2003 is a SCREW,CAP,SOCKET HEAD.

What parts can replace ASME B18.3-2003?

There are 2 known substitutes for ASME B18.3-2003: 3600-917, ASME B18.24-2004. Substitute compatibility should be verified for your specific system.

What is the NSN for ASME B18.3-2003?

ASME B18.3-2003 is cataloged in the U.S. Government catalog under NSN 5305-01-165-5589. This indicates validated use in U.S. government and defense supply chains.

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