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Expansion Plug

Model / MPN: 30987 | NSN: 5340-00-274-5235
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
5340-00-274-5235
Sold in multiples of
DEMIL
NO
Outside Diameter
Between 0.700 inches and 0.704 inches
Material Thickness
0.031 inches
Height
0.313 inches
Material
Steel
Material Specification
Ams 5042 assn standard single material response or ams 5044 assn standard single material response
Surface Treatment
Tin
Style Designator
Cup
30987 Series Parts

Pricing and Availability

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30987 Cross Reference