4308490

View detailed technical data, stock status, and sourcing information for: 4308490
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-666-3297

Item Name Code

15930

Assigment Date

09/01/2017 (8 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

2.1 millimeters minimum and 4.2 millimeters maximum overall height, 0.93 millimeters minimum and 1.07 millimeters maximum material thickness, 20.35 millimeters minimum and 21.65 millimeters maximum outside diameter, 10.50 millimeters minimum and 10.93 millimeters maximum hole diameter, mrap - m-atv end item identification

Product Characteristics

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

Hole Diameter: 10.50 millimeters minimum and 10.93 millimeters maximum
Outside Diameter: 20.35 millimeters minimum and 21.65 millimeters maximum
Overall Height: 2.1 millimeters minimum and 4.2 millimeters maximum
Material Thickness: 0.93 millimeters minimum and 1.07 millimeters maximum
End Item Identification: mrap - m-atv
Part Name Assigned By Controlling Agency: wash, wave m10 x 21 x 1.0 ss
Material: steel overall
Style Designator: spring tension

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
4308490	Concave Washer

FAQs

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

What is the FSCG of the NSN 5310-01-666-3297?

The FSCG of the NSN 5310-01-666-3297 is 5310

Does the NSN 5310-01-666-3297 have a Schedule B code assigned?

Yes, the Schedule B code is 7616108000

Does NSN 5310-01-666-3297 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 5310-01-666-3297 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-666-3297 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 5310-01-666-3297 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Fri, Sep 1, 2017