100179-4-20-AS — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

100179-4-20-AS: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY FASTENER, head_style: FLAT COUNTERSUNK UNDERCUT, grip_length: 1.25 INCHES NOMINAL IN, head_height: 0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN, point_style: FLAT, point_length: 0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-701-3110, 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

100179-4-20-AS

NSN: 5305-01-701-3110
FSC: 5305 — Screws
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)

SPECIFICATIONS

material	TITANIUM ALLOY FASTENER
head_style	FLAT COUNTERSUNK UNDERCUT
grip_length	1.25 INCHES NOMINAL IN
head_height	0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN
point_style	FLAT
point_length	0.032 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
head_diameter	0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM IN
thread_length	0.469 INCHES NOMINAL IN
fastener_length	1.703 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
NSN	5305-01-701-3110

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN

•

POINT LENGTH: 0.032 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.703 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.469 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: NAS621 ASSN STD SINGLE MATERIAL RESPONSE FASTENER

•

POINT CHAMFER ANGLE: 45.00 DEGREES NOMINAL

•

NOMINAL THREAD DIAMETER: 0.2500 INCHES IN

•

FEATURES PROVIDED: O RING

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN
POINT LENGTH	0.032 INCHES NOMINAL IN
FASTENER LENGTH	1.703 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
THREAD LENGTH	0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	NAS621 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
POINT CHAMFER ANGLE	45.00 DEGREES NOMINAL
NOMINAL THREAD DIAMETER	0.2500 INCHES IN
FEATURES PROVIDED	O RING
HEAD STYLE	FLAT COUNTERSUNK UNDERCUT
THREAD DIRECTION	RIGHT-HAND

SUBSTITUTES & CROSS-REFERENCES 6

WC8137-4-20MSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

HT8137-4-20ASSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST3M460V4-40-ASSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST3M430Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

BM33024V-4-20-USame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

HT271A4-20Same 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 100179-4-20-AS?

100179-4-20-AS is a SCREW,CLOSE TOLERANCE.

What parts can replace 100179-4-20-AS?

There are 6 known substitutes for 100179-4-20-AS: WC8137-4-20M, HT8137-4-20AS, ST3M460V4-40-AS and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 100179-4-20-AS?

100179-4-20-AS is cataloged in the U.S. Government catalog under NSN 5305-01-701-3110. This indicates validated use in U.S. government and defense supply chains.

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