5305-00-042-5591

Find complete technical information, availability, and procurement data for: 5305-00-042-5591
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-042-5591

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).

hexagon head style, 0.844 inches minimum and 0.875 inches maximum fastener length, right-hand thread direction, 0.761 inches minimum and 0.844 inches maximum thread length, 2a thread class

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: 0.761 inches minimum and 0.844 inches maximum
Fastener Length: 0.844 inches minimum and 0.875 inches maximum
Head Style: hexagon
Head Height: 0.208 inches minimum and 0.230 inches maximum
Width Between Flats: 0.491 inches minimum and 0.500 inches maximum
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Primary Washer Outside Diameter: 0.567 inches minimum and 0.590 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.028 inches minimum and 0.034 inches maximum
Material: steel comp 1010 or steel comp 1020 or steel comp 1050 overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response overall
Thread Series Designator: unf

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
425591	Assembled Washer Screw
5305000425591	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-042-5591?

The FSCG of the NSN 5305-00-042-5591 is 5305

Does the NSN 5305-00-042-5591 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-042-5591 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 5305-00-042-5591 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-042-5591 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 5305-00-042-5591 was assigned to the Federal Catalog?

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