12279039 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

12279039: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: PAN NO. 2, head_height: 0.380 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.560 INCHES NOMINAL IN, thread_length: 1.750 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-079-2981, 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

12279039

NSN: 5305-01-079-2981
FSC: 5305 — Screws
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)

SPECIFICATIONS

material	STEEL COMP 303 OVERALL
head_style	PAN NO. 2
head_height	0.380 INCHES NOMINAL IN
thread_class	3A A
head_diameter	0.560 INCHES NOMINAL IN
thread_length	1.750 INCHES NOMINAL IN
fastener_length	1.750 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
width_across_flats	0.310 INCHES NOMINAL IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.375 INCHES IN
thread_quantity_per_inch	24
NSN	5305-01-079-2981

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.310 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.380 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.750 INCHES NOMINAL IN

•

THREAD LENGTH: 1.750 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A276-62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: PAN NO. 2

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.310 INCHES NOMINAL IN
HEAD HEIGHT	0.380 INCHES NOMINAL IN
FASTENER LENGTH	1.750 INCHES NOMINAL IN
THREAD LENGTH	1.750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A276-62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	PAN NO. 2
THREAD DIRECTION	RIGHT-HAND
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 2

BX939-81Reference document

Same NSN cross-reference

Reference document — Secondary reference

5305010792981Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 12279039?

12279039 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 12279039?

There are 2 known substitutes for 12279039: BX939-81, 5305010792981. Substitute compatibility should be verified for your specific system.

What is the NSN for 12279039?

12279039 is cataloged in the U.S. Government catalog under NSN 5305-01-079-2981. This indicates validated use in U.S. government and defense supply chains.

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12279039 — SCREW,CAP,SOCKET HEAD

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