5310-01-344-8921

Find complete technical information, availability, and procurement data for: 5310-01-344-8921
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-344-8921

Item Name Code

14218

Assigment Date

09/08/1991 (34 years ago)

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

0.55 millimeters minimum and 0.65 millimeters maximum material thickness, steel corrosion resisting overall material, 35.0 rockwell c minimum and 43.0 rockwell c maximum hardness rating, 5.30 millimeters minimum and 5.42 millimeters maximum hole diameter, 9.85 millimeters minimum and 10.00 millimeters 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: 5.30 millimeters minimum and 5.42 millimeters maximum
Outside Diameter: 9.85 millimeters minimum and 10.00 millimeters maximum
Material Thickness: 0.55 millimeters minimum and 0.65 millimeters maximum
Hardness Rating: 35.0 rockwell c minimum and 43.0 rockwell c maximum
Material: steel corrosion resisting overall
Material Document And Classification: qq-s-763 fed spec single material response overall
Style Designator: flat internal teeth

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
10EM50	Lock Washer
D70336/3-48	Lock Washer
DOD-W-70336/3	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-344-8921?

The FSCG of the NSN 5310-01-344-8921 is 5310

Does the NSN 5310-01-344-8921 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-344-8921 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 5310-01-344-8921 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-344-8921 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 5310-01-344-8921 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sun, Sep 8, 1991