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		                        | National Stock Number:
 5340-01-445-8499
 
 Federal Supply Class:
 5340
 
 National Item Identification Number:
 014458499
 
 Description:
 PLUG,EXPANSION
 
 Detail:
 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.
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 Manufacturer Information:
 
 | AS3131-09 | 0U583 | SAE INTERNATIONAL |  | AS3131-09 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | 
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 Techincal Specification:
 
 | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE |  | MATERIAL | STEEL |  | OUTSIDE DIAMETER | 0.405 INCHES MINIMUM AND 0.406 INCHES MAXIMUM | 
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