5305-01-158-7820

Find complete technical information, availability, and procurement data for: 5305-01-158-7820
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-158-7820

Item Name Code

06660

Assigment Date

07/29/1983 (42 years ago)

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

3.75 millimeters minimum and 4.35 millimeters maximum head height, 15.92 millimeters minimum and 16.00 millimeters maximum fastener length, hexagon extended washer head style, right-hand thread direction, 13.10 millimeters minimum and 15.92 millimeters maximum thread length

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: 13.10 millimeters minimum and 15.92 millimeters maximum
Fastener Length: 15.92 millimeters minimum and 16.00 millimeters maximum
Head Style: hexagon extended washer
Head Height: 3.75 millimeters minimum and 4.35 millimeters maximum
Width Between Flats: 6.78 millimeters minimum and 7.00 millimeters maximum
Extended Washer Diameter: 8.50 millimeters minimum and 9.20 millimeters maximum
Extended Washer Thickness: 0.75 millimeters minimum and 1.00 millimeters maximum
Washer Quantity: 1
Internal Drive Style: w/o internal drive
End Item Identification: truck, fire/crash p10;vehicle, commercial utility cargo (cucv)
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum primary washer
Thread Pitch In Millimeters: 1.41
Primary Washer Outside Diameter: 19.48 millimeters minimum and 20.00 millimeters maximum
Primary Washer Style: dome internal teeth
Primary Washer Material Thickness: 0.56 millimeters nominal
Nonmachine Nominal Thread Diameter: 4.2 millimeters
Special Features: point style thread forming
Material: steel bearing surface of head
Material: steel comp 1050 primary washer
Material Document And Classification: g-6172-m fscm 11862 mfr ref single material response bearing surface of head
Material Document And Classification: sae assn std single material response primary washer
Surface Treatment: phosphate bearing surface of head
Surface Treatment: phosphate primary washer
Surface Treatment Document And Classification: g-4435-m code a mfr ref single treatment response bearing surface of head
Surface Treatment Document And Classification: g-4435-m code a mfr ref single treatment response primary washer

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-159-1288	No Name Available	12/01/1985

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
11503395	Assembled Washer Screw
14026247	Assembled Washer Screw
210021798	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-01-158-7820?

The FSCG of the NSN 5305-01-158-7820 is 5305

Does NSN 5305-01-158-7820 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 5305-01-158-7820 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-158-7820 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 5305-01-158-7820 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Fri, Jul 29, 1983