3M139-4

View detailed technical data, stock status, and sourcing information for: 3M139-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-005-0496

Item Name Code

15930

Assigment Date

06/19/1975 (51 years ago)

0.325 inches minimum and 0.335 inches maximum hole diameter, 0.250 inches minimum and 0.280 inches maximum radius, 0.464 inches minimum and 0.474 inches maximum outside diameter, 0.108 inches minimum and 0.118 inches maximum material thickness, steel overall material

Product Characteristics

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

Hole Diameter: 0.325 inches minimum and 0.335 inches maximum
Radius: 0.250 inches minimum and 0.280 inches maximum
Outside Diameter: 0.464 inches minimum and 0.474 inches maximum
Material Thickness: 0.108 inches minimum and 0.118 inches maximum
Material: steel 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
3M139-4	Concave Washer

FAQs

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

What is the FSCG of the NSN 5310-01-005-0496?

The FSCG of the NSN 5310-01-005-0496 is 5310

Does the NSN 5310-01-005-0496 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-005-0496 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 5310-01-005-0496 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-005-0496 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 5310-01-005-0496 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Thu, Jun 19, 1975