Screw, Machine5305-01-581-5688

NSN 5305-01-581-5688 · NIIN 015815688

FSC 5305 — Screws · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5305-01-581-5688 · 5305015815688 · NIIN 015815688 · 01-581-5688 · FSC 5305 Screws

Nearby stock numbers ← 5305-01-581-5646 · 5305-01-581-5734 Setscrew →

5305-01-581-5688 — Screws

Features

Screw,machine — FSC 5305
Screw Surface Treatment: PASSIVATE
Fastener Length: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
Thread Length: 1.597 INCHES MINIMUM IN
Nominal Thread Diameter: 0.250 INCHES IN
Head Style: FLAT COUNTERSUNK
Thread Direction: RIGHT-HAND
Locking Feature: PATCH OR PELLET OR STRIP

Identification

NSN: 5305-01-581-5688
NIIN: 015815688
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives

General Description

The Screw,machine, cataloged under National Stock Number 5305-01-581-5688, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5305-01-581-5688
Item Name	Screw,machine
FSC / FSG	5305 / 53 — Screws
Status	ACTIVE
Screw Surface Treatment	PASSIVATE
Fastener Length	1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
Thread Length	1.597 INCHES MINIMUM IN
Nominal Thread Diameter	0.250 INCHES IN
Head Style	FLAT COUNTERSUNK
Thread Direction	RIGHT-HAND
Locking Feature	PATCH OR PELLET OR STRIP
Screw Material	STEEL CORROSION RESISTING
Minimum Tensile Strength	80000 POUNDS PER SQUARE INCH LBS
Internal Drive Style	CROSS RECESS TYPE 1
Countersink Angle	80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Thread Class	2A A
Thread Quantity Per Inch	28
Thread Series Designator	UNF
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
MS51960-89L	2/2 Government specification standardization 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 5305-01-581-5688?

NSN 5305-01-581-5688 is a Screw,machine, classified under FSC 5305, Screws. Status: active.

What are the specifications of 5305-01-581-5688?

Key specifications for 5305-01-581-5688: Screw Surface Treatment: PASSIVATE; Fastener Length: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Thread Length: 1.597 INCHES MINIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN. 15 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-581-5688 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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