1-72UNF2A5-8

View detailed technical data, stock status, and sourcing information for: 1-72UNF2A5-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-023-7583

Item Name Code

06657

Assigment Date

06/25/1976 (50 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.594 inches minimum and 0.625 inches maximum fastener length, 0.566 inches minimum and 0.625 inches maximum thread length, pan head style, right-hand thread direction, 2a thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.566 inches minimum and 0.625 inches maximum
Fastener Length: 0.594 inches minimum and 0.625 inches maximum
Head Style: pan
Head Diameter: 0.130 inches minimum and 0.142 inches maximum
Head Height: 0.044 inches minimum and 0.053 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.073 inches
Thread Quantity Per Inch: 72
Screw Material: steel comp 5130h
Screw Surface Treatment: passivate
Thread Series Designator: unf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
1-72UNF2A5-8	Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-023-7583?

The FSCG of the NSN 5305-01-023-7583 is 5305

Does the NSN 5305-01-023-7583 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-023-7583 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5305-01-023-7583 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-023-7583 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5305-01-023-7583 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Fri, Jun 25, 1976