5310-01-372-9268

Find complete technical information, availability, and procurement data for: 5310-01-372-9268
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-372-9268

Item Name Code

15931

Assigment Date

03/23/1993 (33 years ago)

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes:washer (1), recessed and bearing, washer, thrust.

0.963 inches minimum and 0.973 inches maximum outside diameter, 0.510 inches minimum and 0.520 inches maximum hole diameter, 40.0 rockwell c minimum and 46.0 rockwell c maximum hardness rating, 0.190 inches minimum and 0.210 inches maximum material thickness, 32.0 microinches all surfaces surface finish

Product Characteristics

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

Hole Diameter: 0.510 inches minimum and 0.520 inches maximum
Outside Diameter: 0.963 inches minimum and 0.973 inches maximum
Material Thickness: 0.190 inches minimum and 0.210 inches maximum
Hardness Rating: 40.0 rockwell c minimum and 46.0 rockwell c maximum
Surface Finish: 32.0 microinches all surfaces
Special Features: spherical radius 0.590 in. min 0.610 in. max,countersink dia 0.614 in. min 0.624 in. max,countersink depth 0.025 in.,recess angle 89 deg min 91 deg max
Material: steel comp 8740 or steel comp 4130 overall
Material Document And Classification: mil-s-6049 mil spec 1st material response or mil-s-6750 mil spec 2nd material response or mil-s-18729 mil spec 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: convex

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
M45595/6-06	Convex Washer

FAQs

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

What is the FSCG of the NSN 5310-01-372-9268?

The FSCG of the NSN 5310-01-372-9268 is 5310

Does the NSN 5310-01-372-9268 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-372-9268 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 5310-01-372-9268 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-372-9268 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 5310-01-372-9268 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Tue, Mar 23, 1993