061990

View detailed technical data, stock status, and sourcing information for: 061990
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-440-8421

Item Name Code

15887

Assigment Date

01/27/1997 (29 years ago)

A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.

matl is metal any acceptable; item is used to dress up a panel; rd shape; w/2 flats 180 deg apart; o/d min 0.437; max 0.460 special features, used on international periscope model 324 end item identification, nickel overall surface treatment

Product Characteristics

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

End Item Identification: used on international periscope model 324
Special Features: matl is metal any acceptable; item is used to dress up a panel; rd shape; w/2 flats 180 deg apart; o/d min 0.437; max 0.460
Surface Treatment: nickel overall

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
061990	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-440-8421?

The FSCG of the NSN 5310-01-440-8421 is 5310

Does NSN 5310-01-440-8421 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 5310-01-440-8421 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-440-8421 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 5310-01-440-8421 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Mon, Jan 27, 1997