5310-01-305-2590

Find complete technical information, availability, and procurement data for: 5310-01-305-2590
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-305-2590

Item Name Code

15933

Assigment Date

08/03/1989 (37 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.

0.080 inches nominal material thickness, 0.765 inches minimum and 0.785 inches maximum recess diameter, 1.057 inches minimum and 1.077 inches maximum outside diameter, 0.631 inches minimum and 0.643 inches maximum hole diameter, 90.0 degrees nominal recess angle

Product Characteristics

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

Hole Diameter: 0.631 inches minimum and 0.643 inches maximum
Outside Diameter: 1.057 inches minimum and 1.077 inches maximum
Recess Diameter: 0.765 inches minimum and 0.785 inches maximum
Material Thickness: 0.080 inches nominal
Recess Angle: 90.0 degrees nominal
Material: aluminum alloy 5052 overall
Material Document And Classification: qq-a-250/8,h34 fed spec single material response or qq-a-250/8,h36 fed spec single material response or qq-a-250/8,h38 fed spec single material response overall
Surface Treatment: anodize or chromate overall
Surface Treatment Document And Classification: mil-a-8625 mil spec 1st treatment response or mil-c-5541 mil spec 2nd treatment response overall
Style Designator: recessed

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
SS5103D10	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-01-305-2590?

The FSCG of the NSN 5310-01-305-2590 is 5310

Does the NSN 5310-01-305-2590 have a Schedule B code assigned?

Yes, the Schedule B code is 7616108000

Does NSN 5310-01-305-2590 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 5310-01-305-2590 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-305-2590 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 5310-01-305-2590 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Aug 3, 1989