Screw, Shoulder5305-01-643-4874

NSN 5305-01-643-4874 · NIIN 016434874

FSC 5305 — Screws · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5305-01-643-4874 · 5305016434874 · NIIN 016434874 · 01-643-4874 · FSC 5305 Screws

Nearby stock numbers ← 5305-01-643-4855 Screw, Shoulder · 5305-01-643-4883 Screw, Shoulder →

5305-01-643-4874 — Screws

Features

Screw,shoulder — FSC 5305
Width Across Flats: 0.188 INCHES NOMINAL IN
Head Height: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Fastener Length: 2.000 INCHES NOMINAL IN
Thread Length: 0.500 INCHES NOMINAL IN
Nominal Thread Diameter: 0.375 INCHES IN
Head Style: FLAT CHAMFER
Thread Direction: RIGHT-HAND

Identification

NSN: 5305-01-643-4874
NIIN: 016434874
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives

General Description

The Screw,shoulder, cataloged under National Stock Number 5305-01-643-4874, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-643-4874
Item Name	Screw,shoulder
FSC / FSG	5305 / 53 — Screws
Status	ACTIVE
Width Across Flats	0.188 INCHES NOMINAL IN
Head Height	0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Fastener Length	2.000 INCHES NOMINAL IN
Thread Length	0.500 INCHES NOMINAL IN
Nominal Thread Diameter	0.375 INCHES IN
Head Style	FLAT CHAMFER
Thread Direction	RIGHT-HAND
Surface Treatment	ZINC AND CHROMATE OVERALL
Internal Drive Style	HEXAGON
Thread Class	3A A
Thread Quantity Per Inch	16
Material	STEEL UNS K03104 OVERALL
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)
Head Diameter	0.543 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
AES20U375B00BB3A81	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 5305 — Screws

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

5305-00-001-5016

5305-00-001-5016 · Item name not on file

5305-00-001-9160

5305-00-001-9160 · Item name not on file

5305-00-001-9629

SCREW,ADJUSTING CLEVIS

5305-00-001-9742

5305-00-001-9742 · Item name not on file

5305-00-001-9768

SCREW,CAP,SOCKET HEAD

5305-00-003-4306

SCREW,MACHINE

5305-00-003-6694

5305-00-003-6694 · Item name not on file

5305-00-003-6753

5305-00-003-6753 · Item name not on file

Frequently Asked Questions

What is NSN 5305-01-643-4874?

NSN 5305-01-643-4874 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.

What are the specifications of 5305-01-643-4874?

Key specifications for 5305-01-643-4874: Width Across Flats: 0.188 INCHES NOMINAL IN; Head Height: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Fastener Length: 2.000 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL IN. 14 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-643-4874 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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