5305-01-421-1858

Find complete technical information, availability, and procurement data for: 5305-01-421-1858
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-421-1858

Item Name Code

41756

Assigment Date

11/03/1995 (30 years ago)

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes:thrust type washer.

2.500 inches nominal fastener length, cross recess type 1 internal drive style, 0.285 inches minimum and 0.332 inches maximum head diameter, flat countersunk head style, gimlet point (type a, ab or ba) nonmachine thread style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Fastener Length: 2.500 inches nominal
Head Style: flat countersunk
Head Diameter: 0.285 inches minimum and 0.332 inches maximum
Internal Drive Style: cross recess type 1
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Nonmachine Nominal Thread Diameter: 0.164 inches
Material: steel overall

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
03353-01	Tapping Screw
90092A132	Tapping Screw
ASTM-C-1002TYPE W2.5LG	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-421-1858?

The FSCG of the NSN 5305-01-421-1858 is 5305

Does the NSN 5305-01-421-1858 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-421-1858 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 5305-01-421-1858 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-421-1858 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 5305-01-421-1858 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, Nov 3, 1995