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Expansion Plug

Model / MPN: AS3131-09 | NSN: 5340-01-445-8499
ITAR Registered seal

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.

Product Details
NATO Stock Number
5340-01-445-8499
Sold in multiples of
DEMIL
NO
Outside Diameter
Between 0.405 inches and 0.406 inches
Material
Steel
Material Specification
Ams 5640 assn standard single material response
AS3131 Series Parts

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AS3131-09 Cross Reference