Screw, Machine5305-01-256-6796

NSN 5305-01-256-6796 · NIIN 012566796 · Part number T21579

Deere & Co · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 75160

Government record, cited

NSN 5305-01-256-6796 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-256-6796. Manufacturer of record part number: T21579.

Also searched as 5305-01-256-6796 · 5305012566796 · NIIN 012566796 · 01-256-6796 · FSC 5305 Screws · CAGE 75160 · T21579

Nearby stock numbers ← 5305-01-256-6795 Screw, Machine · 5305-01-256-6797 Screw, Machine →

5305-01-256-6796 — Screws

Features

Screw,machine — FSC 5305
Head Height: 0.510 INCHES NOMINAL IN
Fastener Length: 4.750 INCHES NOMINAL IN
Thread Length: 2.640 INCHES NOMINAL IN
Nominal Thread Diameter: 0.500 INCHES IN
Head Style: FLAT CHAMFER
Thread Direction: RIGHT-HAND
Screw Material: STEEL

Identification

NSN: 5305-01-256-6796
NIIN: 012566796
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: T21579
Manufacturer: Deere & Co

General Description

The Screw,machine, cataloged under National Stock Number 5305-01-256-6796, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Deere & Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-256-6796
Primary Part Number	T21579
Item Name	Screw,machine
FSC / FSG	5305 / 53 — Screws
Manufacturer	Deere & Co
Status	ACTIVE
Head Height	0.510 INCHES NOMINAL IN
Fastener Length	4.750 INCHES NOMINAL IN
Thread Length	2.640 INCHES NOMINAL IN
Nominal Thread Diameter	0.500 INCHES IN
Head Style	FLAT CHAMFER
Thread Direction	RIGHT-HAND
Screw Material	STEEL
Internal Drive Style	SLOT
Thread Class	2A A
Thread Quantity Per Inch	13
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)
Head Diameter	0.870 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

Part Number	Manufacturer
T21579 PRIMARY	Deere & Co (USA)

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 5305-01-256-6796?

NSN 5305-01-256-6796 is a Screw,machine, manufactured by Deere & Co, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-256-6796?

NSN 5305-01-256-6796 has 1 manufacturer part number on file: T21579 (Deere & Co).

What are the specifications of T21579?

Key specifications for T21579: Head Height: 0.510 INCHES NOMINAL IN; Fastener Length: 4.750 INCHES NOMINAL IN; Thread Length: 2.640 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN. 12 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-256-6796 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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