5305-01-431-9989

Find complete technical information, availability, and procurement data for: 5305-01-431-9989
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-431-9989

Item Name Code

06657

Assigment Date

05/23/1996 (30 years ago)

"a nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. An integral feature is incorporated for locking on the threads of a mating member. The slots when used in conjunction with a solid or split (cotter) pin, act as an extra "fail safe" feature in critical applications. Excludes:nut (1), self-locking, slotted, hexagon."

0.500 inches nominal fastener length, 0.500 inches nominal thread length, right-hand thread direction, 2a thread class, pan 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: 0.500 inches nominal
Fastener Length: 0.500 inches nominal
Head Style: pan
Head Diameter: 0.473 inches minimum and 0.492 inches maximum
Head Height: 0.162 inches minimum and 0.175 inches maximum
Locking Feature: patch or pellet or strip
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Screw Material: steel corrosion resisting
Locking Feature Material: plastic polyamide (nylon)
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
211016568	Machine Screw
564-6409341-36	Machine Screw
6409341 FIND 36	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-431-9989?

The FSCG of the NSN 5305-01-431-9989 is 5305

Does the NSN 5305-01-431-9989 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-431-9989 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 5305-01-431-9989 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-431-9989 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 5305-01-431-9989 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Thu, May 23, 1996