5310-01-298-7340

Find complete technical information, availability, and procurement data for: 5310-01-298-7340
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-298-7340

Item Name Code

01857

Assigment Date

04/20/1989 (37 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.

2b thread class, right-hand thread direction, 0.250 inches nominal nut height, 0.500 inches nominal first end counterbore diameter, 0.177 inches nominal second end counterbore diameter

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Counterbore Diameter: 0.177 inches nominal second end
Counterbore Diameter: 0.500 inches nominal first end
Nut Height: 0.250 inches nominal
Nut Counterbore Depth: 0.050 inches nominal first end
Nut Counterbore Depth: 0.058 inches nominal second end
Width Across Flats: 0.560 inches nominal
Thread Series: unef
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.375 inches
Bearing Surface Type: chamfered or washer faced
Material: copper alloy 360 overall
Material Document And Classification: qq-b-626,alloy 360 fed spec single material response overall
Surface Treatment: nickel overall
Surface Treatment Document And Classification: qq-n-290,class 1,type 5 fed spec single treatment response 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
B108A28-1	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-298-7340?

The FSCG of the NSN 5310-01-298-7340 is 5310

Does the NSN 5310-01-298-7340 have a Schedule B code assigned?

Yes, the Schedule B code is 7415290000

Does NSN 5310-01-298-7340 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 5310-01-298-7340 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-298-7340 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 5310-01-298-7340 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Apr 20, 1989