5305-00-172-4025

Find complete technical information, availability, and procurement data for: 5305-00-172-4025
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-172-4025

Item Name Code

06657

Assigment Date

09/01/1972 (53 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

2.190 inches minimum and 2.210 inches maximum fastener length, right-hand thread direction, 0.380 inches minimum thread length, 2a thread class, hexagon 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: 2a
Thread Direction: right-hand
Thread Length: 0.380 inches minimum
Fastener Length: 2.190 inches minimum and 2.210 inches maximum
Head Style: hexagon
Head Height: 0.050 inches minimum and 0.070 inches maximum
Width Between Flats: 0.182 inches minimum and 0.192 inches maximum
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 56
Part Name Assigned By Controlling Agency: navy special project
Screw Material: steel comp 303
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unc

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
57746600-01	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-172-4025?

The FSCG of the NSN 5305-00-172-4025 is 5305

Does the NSN 5305-00-172-4025 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-172-4025 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 5305-00-172-4025 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-172-4025 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 5305-00-172-4025 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Fri, Sep 1, 1972