Screw, Machine5305-01-021-9901

NSN 5305-01-021-9901 · NIIN 010219901

FSC 5305 — Screws · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5305-01-021-9901 · 5305010219901 · NIIN 010219901 · 01-021-9901 · FSC 5305 Screws

Nearby stock numbers ← 5305-01-021-9900 · 5305-01-021-9903 →

5305-01-021-9901 — Screws

Features

Screw,machine — FSC 5305
Fastener Length: 1.250 INCHES NOMINAL IN
Thread Length: 1.097 INCHES MINIMUM IN
Nominal Thread Diameter: 0.250 INCHES IN
Head Style: FLAT COUNTERSUNK
Thread Direction: RIGHT-HAND
Screw Material: NICKEL ALLOY
Internal Drive Style: SLOT

Identification

NSN: 5305-01-021-9901
NIIN: 010219901
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives

General Description

The Screw,machine, cataloged under National Stock Number 5305-01-021-9901, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5305-01-021-9901
Item Name	Screw,machine
FSC / FSG	5305 / 53 — Screws
Status	ACTIVE
Fastener Length	1.250 INCHES NOMINAL IN
Thread Length	1.097 INCHES MINIMUM IN
Nominal Thread Diameter	0.250 INCHES IN
Head Style	FLAT COUNTERSUNK
Thread Direction	RIGHT-HAND
Screw Material	NICKEL ALLOY
Internal Drive Style	SLOT
Countersink Angle	81.0 DEGREES NOMINAL
Thread Class	2A A
Thread Quantity Per Inch	20
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)
Head Diameter	0.452 INCHES MINIMUM AND 0.507 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
49M68-33PC49	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.

5305-00-000-0094

SCREW,CLOSE TOLERANCE

5305-00-000-0094

SCREW,CLOSE TOLERANCE

5305-00-000-0094

SCREW,CLOSE TOLERANCE

5305-00-000-1397

5305-00-000-1397 · Item name not on file

5305-00-000-2625

5305-00-000-2625 · Item name not on file

5305-00-000-3669

5305-00-000-3669 · Item name not on file

5305-00-000-3830

5305-00-000-3830 · Item name not on file

5305-00-000-3831

5305-00-000-3831 · Item name not on file

Frequently Asked Questions

What is NSN 5305-01-021-9901?

NSN 5305-01-021-9901 is a Screw,machine, classified under FSC 5305, Screws. Status: active.

What are the specifications of 5305-01-021-9901?

Key specifications for 5305-01-021-9901: Fastener Length: 1.250 INCHES NOMINAL IN; Thread Length: 1.097 INCHES MINIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: FLAT COUNTERSUNK. 12 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-021-9901 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.

PartsTable Design LLC · partstable.com