123879 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

123879: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.375 INCHES MAXIMUM IN, fastener_length: 1.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-012-3879, 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

123879

NSN: 5305-00-012-3879
FSC: 5305 — Screws
CAGE: 24617 — GENERAL MOTORS CORP (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	HEXAGON
head_height	0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class	2A A
thread_length	1.375 INCHES MAXIMUM IN
fastener_length	1.375 INCHES NOMINAL IN
hardness_rating	95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OR ZINC OVERALL
width_between_flats	0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
nominal_thread_diameter	0.500 INCHES IN
minimum_tensile_strength	74000 POUNDS PER SQUARE INCH LBS
NSN	5305-00-012-3879

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.375 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 1.375 INCHES MAXIMUM IN

•

HARDNESS RATING: 95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.500 INCHES IN

•

HEAD STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
FASTENER LENGTH	1.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
THREAD LENGTH	1.375 INCHES MAXIMUM IN
HARDNESS RATING	95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 1

FFS85TYPE2STYLE10PReference document

Same NSN cross-reference

Reference document — Identification reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 123879?

123879 is a SCREW,CAP,HEXAGON HEAD.

What parts can replace 123879?

There is 1 known substitute for 123879: FFS85TYPE2STYLE10P. Substitute compatibility should be verified for your specific system.

What is the NSN for 123879?

123879 is cataloged in the U.S. Government catalog under NSN 5305-00-012-3879. This indicates validated use in U.S. government and defense supply chains.

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123879 — SCREW,CAP,HEXAGON HEAD

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