HT4008-5-21 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT4008-5-21: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, thread_length: 0.442 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-142-7233, 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

HT4008-5-21

NSN: 5305-01-142-7233
FSC: 5305 — Screws
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_length	0.442 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	1.764 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN
shoulder_length	1.176 INCHES MINIMUM AND 1.196 INCHES MAXIMUM FIRST SHOULDER IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
shoulder_diameter	0.3271 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatment	PASSIVATE OVERALL
NSN	5305-01-142-7233

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.764 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN

•

SHOULDER LENGTH: 1.176 INCHES MINIMUM AND 1.196 INCHES MAXIMUM FIRST SHOULDER IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

SHOULDER DIAMETER: 0.3271 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.442 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.764 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN
SHOULDER LENGTH	1.176 INCHES MINIMUM AND 1.196 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER	0.3271 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.442 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND

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

ST3M496-5-21Same 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 HT4008-5-21?

HT4008-5-21 is a SCREW,SHOULDER.

What parts can replace HT4008-5-21?

There is 1 known substitute for HT4008-5-21: ST3M496-5-21. Substitute compatibility should be verified for your specific system.

What is the NSN for HT4008-5-21?

HT4008-5-21 is cataloged in the U.S. Government catalog under NSN 5305-01-142-7233. This indicates validated use in U.S. government and defense supply chains.

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