LE153-0002-0005

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-160-4555

Item Name Code

15930

Assigment Date

08/23/1983 (42 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

0.417 inches minimum and 0.427 inches maximum hole diameter, 40.0 rockwell c minimum and 46.0 rockwell c maximum hardness rating, 0.106 inches minimum and 0.126 inches maximum material thickness, 0.365 inches minimum and 0.385 inches maximum radius, 0.608 inches minimum and 0.618 inches maximum outside diameter

Product Characteristics

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

Hole Diameter: 0.417 inches minimum and 0.427 inches maximum
Radius: 0.365 inches minimum and 0.385 inches maximum
Outside Diameter: 0.608 inches minimum and 0.618 inches maximum
Material Thickness: 0.106 inches minimum and 0.126 inches maximum
Hardness Rating: 40.0 rockwell c minimum and 46.0 rockwell c maximum
Material: steel comp 4130 or steel comp 8740 overall
Material Document And Classification: mil-s-6758 mil spec 1st material response or mil-s-18729 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6358 assn std 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Style Designator: concave

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
K39787-5	Concave Washer
LE153-0002-0005	Concave Washer

FAQs

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

What is the FSCG of the NSN 5310-01-160-4555?

The FSCG of the NSN 5310-01-160-4555 is 5310

Does the NSN 5310-01-160-4555 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-160-4555 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 5310-01-160-4555 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-160-4555 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 5310-01-160-4555 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Aug 23, 1983