HT4020-4-16Y — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT4020-4-16Y: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK UNDERCUT, grip_length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, head_height: 0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-187-4865, 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

HT4020-4-16Y

NSN: 5305-01-187-4865
FSC: 5305 — Screws
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT COUNTERSUNK UNDERCUT
grip_length	0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
head_height	0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN
head_diameter	0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
thread_length	0.469 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES THREADS
fastener_length	1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
NSN	5305-01-187-4865

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES THREADS

•

HEAD HEIGHT: 0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN

•

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

•

THREAD LENGTH: 0.469 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT	0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM IN
FASTENER LENGTH	1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK UNDERCUT

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

No substitute or cross-reference records for this part.

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 HT4020-4-16Y?

HT4020-4-16Y is a SCREW,CLOSE TOLERANCE.

What is the NSN for HT4020-4-16Y?

HT4020-4-16Y is cataloged in the U.S. Government catalog under NSN 5305-01-187-4865. This indicates validated use in U.S. government and defense supply chains.

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