5305-01-159-2779

Find complete technical information, availability, and procurement data for: 5305-01-159-2779
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-159-2779

Item Name Code

06660

Assigment Date

08/05/1983 (42 years ago)

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

18.7 millimeters minimum and 20.3 millimeters maximum thread length, 24.20 millimeters minimum and 25.80 millimeters maximum fastener length, right-hand thread direction, 8.6 millimeters minimum and 9.8 millimeters maximum head diameter, flat top elevator 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 Direction: right-hand
Thread Length: 18.7 millimeters minimum and 20.3 millimeters maximum
Fastener Length: 24.20 millimeters minimum and 25.80 millimeters maximum
Head Style: flat top elevator
Head Diameter: 8.6 millimeters minimum and 9.8 millimeters maximum
Washer Quantity: 1
Internal Drive Style: cross recess type 1
Features Provided: casehardened
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum primary washer
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Countersink Angle: 80.0 radians minimum and 82.0 radians maximum
Primary Washer Outside Diameter: 12.8 millimeters minimum and 13.1 millimeters maximum
Primary Washer Style: spring tension
Primary Washer Material Thickness: 0.5 millimeters minimum and 0.6 millimeters maximum
Nonmachine Nominal Thread Diameter: 4.8 millimeters
Material: steel fastener
Material: steel primary washer
Material Document And Classification: gm 6010-m,fscm 11862 mfr ref single material response fastener
Material Document And Classification: gm 6010-m,fscm 11862 mfr ref single material response primary washer

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
14044340	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-01-159-2779?

The FSCG of the NSN 5305-01-159-2779 is 5305

Does the NSN 5305-01-159-2779 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-159-2779 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 5305-01-159-2779 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-159-2779 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 5305-01-159-2779 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Fri, Aug 5, 1983