5305-00-210-0494

Find complete technical information, availability, and procurement data for: 5305-00-210-0494
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-210-0494

Item Name Code

18257

Assigment Date

01/01/1963 (63 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, 3a thread class, 2.375 inches maximum thread length, 2.375 inches nominal fastener length, hexagon 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 Class: 3a
Thread Direction: right-hand
Thread Length: 2.375 inches maximum
Fastener Length: 2.375 inches nominal
Head Style: hexagon
Head Height: 1.000 inches nominal
Width Between Flats: 1.750 inches nominal
Nominal Thread Diameter: 1.250 inches
Features Provided: finished head
Thread Quantity Per Inch: 12
Hardness Rating: 40.0 rockwell c minimum and 45.0 rockwell c maximum overall
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp 1045 overall
Material Document And Classification: qq-s-634 fed spec single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325,ty 2,cl 3 fed spec single 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
730343PC7	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-210-0494?

The FSCG of the NSN 5305-00-210-0494 is 5305

Does the NSN 5305-00-210-0494 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-210-0494 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 5305-00-210-0494 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-210-0494 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 5305-00-210-0494 was assigned to the Federal Catalog?

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