3387C77H04 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

3387C77H04: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEXAGON, head_height: 0.350 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.060 INCHES MINIMUM IN, fastener_length: 3.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-443-6683, 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

3387C77H04

NSN: 5305-01-443-6683
FSC: 5305 — Screws
CAGE: 04804 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
head_style	HEXAGON
head_height	0.350 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN
thread_class	2A A
thread_length	1.060 INCHES MINIMUM IN
fastener_length	3.250 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_between_flats	0.437 INCHES NOMINAL IN
special_test_features	SPECIAL QUALITY CONTROL TESTING
nominal_thread_diameter	0.250 INCHES IN
thread_quantity_per_inch	20
NSN	5305-01-443-6683

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.350 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN

•

FASTENER LENGTH: 3.250 INCHES NOMINAL IN

•

SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING

•

THREAD LENGTH: 1.060 INCHES MINIMUM IN

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

•

DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY MATERIAL

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.350 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN
FASTENER LENGTH	3.250 INCHES NOMINAL IN
SPECIAL TEST FEATURES	SPECIAL QUALITY CONTROL TESTING
THREAD LENGTH	1.060 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
DEPARTURE FROM CITED DOCUMENT	AS MODIFIED BY MATERIAL
WIDTH BETWEEN FLATS	0.437 INCHES NOMINAL IN
SURFACE TREATMENT	PASSIVATE OVERALL

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 3

LL-HX3-4847Reference document

Same NSN cross-reference

Reference document — Secondary reference

FF-S-85Reference document

Same NSN cross-reference

Reference document — Identification reference

P014436683Reference 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 3387C77H04?

3387C77H04 is a SCREW,CAP,HEXAGON HEAD.

What parts can replace 3387C77H04?

There are 3 known substitutes for 3387C77H04: LL-HX3-4847, FF-S-85, P014436683. Substitute compatibility should be verified for your specific system.

What is the NSN for 3387C77H04?

3387C77H04 is cataloged in the U.S. Government catalog under NSN 5305-01-443-6683. This indicates validated use in U.S. government and defense supply chains.

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