A-A-52420-08

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-050-1600

Item Name Code

03797

Assigment Date

01/01/1961 (65 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.

1.122 inches minimum and 1.128 inches maximum outside diameter, concave style designator, steel material, 0.083 inches nominal material thickness, 1.375 inches nominal radius

Product Characteristics

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

Radius: 1.375 inches nominal
Outside Diameter: 1.122 inches minimum and 1.128 inches maximum
Material Thickness: 0.083 inches nominal
Material: steel
Style Designator: concave

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-054-1439	No Name Available	03/07/1966
5340-00-285-6520	No Name Available	01/01/1963
2520-00-450-9291	No Name Available	05/20/1970
5340-00-598-5129	No Name Available	11/06/1970
5340-00-598-5486	No Name Available	07/01/1983
5340-00-664-6117	No Name Available	09/01/2001

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
019-17	Expansion Plug
106517	Expansion Plug
172548	Expansion Plug
5340000501600	Expansion Plug
981A	Expansion Plug
A-A-52420-08	Expansion Plug
A52420-08	Expansion Plug
DC3343	Expansion Plug
JN17-4814A	Expansion Plug
MS35648-8	Expansion Plug
S716	Expansion Plug
VT5058	Expansion Plug

FAQs

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

What is the FSCG of the NSN 5340-00-050-1600?

The FSCG of the NSN 5340-00-050-1600 is 5340

Does the NSN 5340-00-050-1600 have a Schedule B code assigned?

Yes, the Schedule B code is 8402900090

Does NSN 5340-00-050-1600 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 5340-00-050-1600 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-050-1600 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-00-050-1600 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961