Thumbscrew5305-01-340-9053

NSN 5305-01-340-9053 · NIIN 013409053 · Part number 92421A537

Mcmaster-Carr Supply Co · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 39428

Government record, cited

NSN 5305-01-340-9053 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-340-9053. Manufacturer of record part number: 92421A537.

Also searched as 5305-01-340-9053 · 5305013409053 · NIIN 013409053 · 01-340-9053 · FSC 5305 Screws · CAGE 39428 · 92421A537

Nearby stock numbers ← 5305-01-340-9052 Setscrew · 5305-01-340-9055 Screw, Cap, Socket Head →

5305-01-340-9053 — Screws

Features

Thumbscrew — FSC 5305
Fastener Length: 0.500 INCHES NOMINAL IN
Thread Length: 0.400 INCHES NOMINAL IN
Nominal Thread Diameter: 0.250 INCHES IN
Head Style: KNURLED NO. 2
Thread Direction: RIGHT-HAND
Thread Class: 2A A
Thread Quantity Per Inch: 20

Identification

NSN: 5305-01-340-9053
NIIN: 013409053
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 92421A537
Manufacturer: Mcmaster-Carr Supply Co

General Description

The Thumbscrew, cataloged under National Stock Number 5305-01-340-9053, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 9 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	5305-01-340-9053
Primary Part Number	92421A537
Item Name	Thumbscrew
FSC / FSG	5305 / 53 — Screws
Manufacturer	Mcmaster-Carr Supply Co
Status	ACTIVE
Fastener Length	0.500 INCHES NOMINAL IN
Thread Length	0.400 INCHES NOMINAL IN
Nominal Thread Diameter	0.250 INCHES IN
Head Style	KNURLED NO. 2
Thread Direction	RIGHT-HAND
Thread Class	2A A
Thread Quantity Per Inch	20
Material	COPPER ALLOY OVERALL
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)

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
92421A537 PRIMARY	Mcmaster-Carr Supply 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 5305-01-340-9053?

NSN 5305-01-340-9053 is a Thumbscrew, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-340-9053?

NSN 5305-01-340-9053 has 1 manufacturer part number on file: 92421A537 (Mcmaster-Carr Supply Co).

What are the specifications of 92421A537?

Key specifications for 92421A537: Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.400 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: KNURLED NO. 2. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-340-9053 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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