Screw, Cap, Socket Head5305-01-517-2575

NSN 5305-01-517-2575 · NIIN 015172575

FSC 5305 — Screws · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5305-01-517-2575 · 5305015172575 · NIIN 015172575 · 01-517-2575 · FSC 5305 Screws · D91906-24C · D91906-24Z

Nearby stock numbers ← 5305-01-517-2480 Screw, Clamp · 5305-01-517-2781 Screw, Cap, Hexagon Head →

5305-01-517-2575 — Screws

Features

Screw,cap,socket Head — FSC 5305
Width Across Flats: 0.750 INCHES NOMINAL IN
Head Height: 1.000 INCHES NOMINAL IN
Fastener Length: 4.250 INCHES NOMINAL IN
Thread Length: 1.750 INCHES MINIMUM IN
Hardness Rating: 26.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL B MAXIMUM OVERALL
Nominal Thread Diameter: 1.000 INCHES IN
Head Style: FLAT CHAMFER

Identification

NSN: 5305-01-517-2575
NIIN: 015172575
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives

General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-517-2575, 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14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-517-2575
Item Name	Screw,cap,socket Head
FSC / FSG	5305 / 53 — Screws
Status	ACTIVE
Width Across Flats	0.750 INCHES NOMINAL IN
Head Height	1.000 INCHES NOMINAL IN
Fastener Length	4.250 INCHES NOMINAL IN
Thread Length	1.750 INCHES MINIMUM IN
Hardness Rating	26.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL B MAXIMUM OVERALL
Nominal Thread Diameter	1.000 INCHES IN
Head Style	FLAT CHAMFER
Thread Direction	RIGHT-HAND
Internal Drive Style	HEXAGON
Thread Class	3A A
Thread Quantity Per Inch	8
Material	STEEL OVERALL
Thread Series Designator	UNRC
Head Diameter	1.500 INCHES NOMINAL 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
D91906-24C	3/2 Design control — primary reference U.S. Government activity
D91906-24Z	5/9 Secondary 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 5305-01-517-2575?

NSN 5305-01-517-2575 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.

What are the specifications of 5305-01-517-2575?

Key specifications for 5305-01-517-2575: Width Across Flats: 0.750 INCHES NOMINAL IN; Head Height: 1.000 INCHES NOMINAL IN; Fastener Length: 4.250 INCHES NOMINAL IN; Thread Length: 1.750 INCHES MINIMUM IN. 14 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-517-2575 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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