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		                        | National Stock Number:
 5340-00-531-7275
 
 Federal Supply Class:
 5340
 
 National Item Identification Number:
 005317275
 
 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:
 
 | 186984 | 24617 | GENERAL MOTORS CORP |  | 4251865 | 6N299 | AGCO CORP PARTS OPN |  | 541538 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S |  | A-A-52420 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | A52420-21 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | A-A-52420-21 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | MS35648-21 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 
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 Techincal Specification:
 
 | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633, COMP FS1010-CANCELLED FED SPEC SINGLE MATERIAL RESPONSE |  | MATERIAL THICKNESS | 0.134 INCHES NOMINAL |  | MATERIAL | STEEL |  | OUTSIDE DIAMETER | 3.500 INCHES NOMINAL |  | RADIUS | 6.000 INCHES NOMINAL |  | STYLE DESIGNATOR | CONCAVE | 
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