12774D18B — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

12774D18B: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY K-500 OVERALL, head_style: FLAT CHAMFER, head_height: 0.500 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, thread_length: 1.250 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-385-2282, 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

12774D18B

NSN: 5305-01-385-2282
FSC: 5305 — Screws
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)

SPECIFICATIONS

material	NICKEL ALLOY K-500 OVERALL
head_style	FLAT CHAMFER
head_height	0.500 INCHES NOMINAL IN
thread_class	3A A
head_diameter	0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
thread_length	1.250 INCHES MINIMUM IN
fastener_length	1.500 INCHES NOMINAL IN
hardness_rating	24.0 ROCKWELL C MINIMUM FASTENER
special_features	6 MILLED SLOTS, 0.060 IN. MIN AND 0.190 IN. MAX WITH A 0.090 IN. RADIUS IN
thread_direction	LEFT-HAND
width_across_flats	0.380 INCHES NOMINAL IN
internal_drive_style	HEXAGON
NSN	5305-01-385-2282

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.380 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.500 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.500 INCHES NOMINAL IN

•

THREAD LENGTH: 1.250 INCHES MINIMUM IN

•

HARDNESS RATING: 24.0 ROCKWELL C MINIMUM FASTENER

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.562 INCHES IN

•

HEAD STYLE: FLAT CHAMFER

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.380 INCHES NOMINAL IN
HEAD HEIGHT	0.500 INCHES NOMINAL IN
FASTENER LENGTH	1.500 INCHES NOMINAL IN
THREAD LENGTH	1.250 INCHES MINIMUM IN
HARDNESS RATING	24.0 ROCKWELL C MINIMUM FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.562 INCHES IN
HEAD STYLE	FLAT CHAMFER
THREAD DIRECTION	LEFT-HAND
SPECIAL FEATURES	6 MILLED SLOTS, 0.060 IN. MIN AND 0.190 IN. MAX WITH A 0.090 IN. RADIUS 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

12774D18Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 12774D18B?

12774D18B is a SCREW,CAP,SOCKET HEAD.

What parts can replace 12774D18B?

There is 1 known substitute for 12774D18B: 12774D18. Substitute compatibility should be verified for your specific system.

What is the NSN for 12774D18B?

12774D18B is cataloged in the U.S. Government catalog under NSN 5305-01-385-2282. This indicates validated use in U.S. government and defense supply chains.

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12774D18B — SCREW,CAP,SOCKET HEAD

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