HT4027-4-13 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT4027-4-13: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.812 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.249 INCHES NOMINAL IN, head_diameter: 0.389 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-588-7440, 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

HT4027-4-13

NSN: 5305-01-588-7440
FSC: 5305 — Screws
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.812 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.249 INCHES NOMINAL IN
head_diameter	0.389 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
thread_length	0.469 INCHES NOMINAL IN
fastener_length	1.281 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
surface_treatment	PASSIVATE OVERALL
internal_drive_style	HIGH-TORQUE
NSN	5305-01-588-7440

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.281 INCHES NOMINAL IN

•

THREAD LENGTH: 0.469 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

GRIP LENGTH: 0.812 INCHES NOMINAL IN

•

GRIP DIAMETER: 0.249 INCHES NOMINAL IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.281 INCHES NOMINAL IN
THREAD LENGTH	0.469 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.812 INCHES NOMINAL IN
GRIP DIAMETER	0.249 INCHES NOMINAL IN
SURFACE TREATMENT	PASSIVATE OVERALL
INTERNAL DRIVE STYLE	HIGH-TORQUE
COUNTERSINK ANGLE	100.0 DEGREES NOMINAL

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

11923-4-13Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST3M557-4-13Reference document

Same NSN cross-reference

Reference document — Vendor item drawing 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 HT4027-4-13?

HT4027-4-13 is a SCREW,CLOSE TOLERANCE.

What parts can replace HT4027-4-13?

There are 2 known substitutes for HT4027-4-13: 11923-4-13, ST3M557-4-13. Substitute compatibility should be verified for your specific system.

What is the NSN for HT4027-4-13?

HT4027-4-13 is cataloged in the U.S. Government catalog under NSN 5305-01-588-7440. This indicates validated use in U.S. government and defense supply chains.

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