HT4027-6-23 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT4027-6-23: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: FILLISTER COUNTERSUNK, grip_length: 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN, head_height: 0.018 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-591-1409, 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

HT4027-6-23

NSN: 5305-01-591-1409
FSC: 5305 — Screws
CAGE: 06725 — SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
head_style	FILLISTER COUNTERSUNK
grip_length	1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
head_height	0.018 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
head_diameter	0.510 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
thread_length	0.641 INCHES NOMINAL IN
fastener_length	2.064 INCHES MINIMUM AND 2.094 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatment	PASSIVATE OVERALL
NSN	5305-01-591-1409

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.018 INCHES MAXIMUM IN

•

FASTENER LENGTH: 2.064 INCHES MINIMUM AND 2.094 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MAS 2700 METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.641 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: FILLISTER COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.018 INCHES MAXIMUM IN
FASTENER LENGTH	2.064 INCHES MINIMUM AND 2.094 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MAS 2700 METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.641 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	FILLISTER COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
GRIP DIAMETER	0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 1

ST3M557-6-23Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 HT4027-6-23?

HT4027-6-23 is a SCREW,CLOSE TOLERANCE.

What parts can replace HT4027-6-23?

There is 1 known substitute for HT4027-6-23: ST3M557-6-23. Substitute compatibility should be verified for your specific system.

What is the NSN for HT4027-6-23?

HT4027-6-23 is cataloged in the U.S. Government catalog under NSN 5305-01-591-1409. This indicates validated use in U.S. government and defense supply chains.

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