5305-01-381-3829

Find complete technical information, availability, and procurement data for: 5305-01-381-3829
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-381-3829

Item Name Code

06657

Assigment Date

10/15/1993 (32 years ago)

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

2a thread class, 0.438 inches minimum and 0.500 inches maximum thread length, 0.500 inches nominal fastener length, pan head style, right-hand thread direction

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: 0.438 inches minimum and 0.500 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: pan
Head Diameter: 0.250 inches minimum and 0.262 inches maximum
Head Height: 0.063 inches minimum and 0.073 inches maximum
Width Between Flats: 0.781 inches nominal
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Screw Material: steel comp 303 or steel comp 303ma or steel comp 303pb or steel comp 303 plus x or steel comp 303se
Locking Feature Material: plastic polyamide (nylon)
Locking Feature Material Document And Classification: mil-f-18240 mil spec single material response
Screw Surface Treatment: passivate
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
38031L-96C-8	Machine Screw
861090-83	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-381-3829?

The FSCG of the NSN 5305-01-381-3829 is 5305

Does the NSN 5305-01-381-3829 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-381-3829 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 5305-01-381-3829 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-381-3829 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 5305-01-381-3829 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Oct 15, 1993