5340-00-678-1423

Find complete technical information, availability, and procurement data for: 5340-00-678-1423
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-678-1423

Item Name Code

03797

Assigment Date

01/01/1963 (63 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.

0.320 inches nominal height, 0.042 inches nominal material thickness, 0.729 inches minimum and 0.735 inches maximum outside diameter, 0.040 inches nominal radius, 0.711 inches minimum and 0.717 inches maximum smallest diameter

Product Characteristics

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

Radius: 0.040 inches nominal
Outside Diameter: 0.729 inches minimum and 0.735 inches maximum
Material Thickness: 0.042 inches nominal
Smallest Diameter: 0.711 inches minimum and 0.717 inches maximum
Height: 0.320 inches nominal
Material: steel
Material Document And Classification: qq-s-00640, fs 1009 to fs 1022 fed spec single material response
Surface Treatment: phosphate
Style Designator: trapped cup

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
8754438	Expansion Plug

FAQs

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

What is the FSCG of the NSN 5340-00-678-1423?

The FSCG of the NSN 5340-00-678-1423 is 5340

Does the NSN 5340-00-678-1423 have a Schedule B code assigned?

Yes, the Schedule B code is 8402900090

Does NSN 5340-00-678-1423 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 5340-00-678-1423 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-678-1423 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 5340-00-678-1423 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963