5305-01-179-1258

Find complete technical information, availability, and procurement data for: 5305-01-179-1258
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-179-1258

Item Name Code

06657

Assigment Date

05/16/1984 (42 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

3a thread class, 0.597 inches nominal thread length, right-hand thread direction, 0.750 inches nominal fastener length, flat countersunk head style

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.597 inches nominal
Fastener Length: 0.750 inches nominal
Head Style: flat countersunk
Head Diameter: 0.480 inches minimum and 0.531 inches maximum
End Item Identification: 2410-00-808-7100
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Countersink Angle: 80.0 degrees minimum and 84.0 degrees maximum
Screw Material: steel
Thread Series Designator: unrc

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
151-36907	Machine Screw
36907	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-179-1258?

The FSCG of the NSN 5305-01-179-1258 is 5305

Does the NSN 5305-01-179-1258 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-179-1258 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 5305-01-179-1258 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-179-1258 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 5305-01-179-1258 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, May 16, 1984