5305-00-638-0844

Find complete technical information, availability, and procurement data for: 5305-00-638-0844
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-0844

Item Name Code

06660

Assigment Date

01/01/1963 (63 years ago)

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

right-hand thread direction, 0.403 inches maximum thread length, 0.438 inches nominal fastener length, 2a thread class, binding 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: 0.403 inches maximum
Fastener Length: 0.438 inches nominal
Head Style: binding
Head Diameter: 0.256 inches minimum and 0.285 inches maximum
Head Height: 0.086 inches minimum and 0.099 inches maximum
Washer Quantity: 1
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Primary Washer Outside Diameter: 0.255 inches minimum and 0.275 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.035 inches nominal
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp 430 fastener
Material: steel corrosion resisting primary washer
Surface Treatment: passivate overall
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
346-6017-00	Assembled Washer Screw
346-6017-000	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-0844?

The FSCG of the NSN 5305-00-638-0844 is 5305

Does the NSN 5305-00-638-0844 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-0844 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 5305-00-638-0844 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-638-0844 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 5305-00-638-0844 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963