5305-01-386-3578

Find complete technical information, availability, and procurement data for: 5305-01-386-3578
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-386-3578

Item Name Code

18257

Assigment Date

02/03/1994 (32 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.

right-hand thread direction, 1.120 inches maximum thread length, 2a thread class, hexagon head style, 1.120 inches nominal fastener length

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: 1.120 inches maximum
Fastener Length: 1.120 inches nominal
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.243 inches maximum
Width Between Flats: 0.551 inches minimum and 0.562 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Special Features: undercut 0.100 in. min, 0.110 in. max from the bearing surface of the head
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate 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
DAA7252D113-001	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-386-3578?

The FSCG of the NSN 5305-01-386-3578 is 5305

Does the NSN 5305-01-386-3578 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-386-3578 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 5305-01-386-3578 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-386-3578 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 5305-01-386-3578 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Thu, Feb 3, 1994