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		                        | National Stock Number:
 5340-01-486-1257
 
 Federal Supply Class:
 5340
 
 National Item Identification Number:
 014861257
 
 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:
 
 | PLGM0401020A | 92555 | THE LEE CO | 
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 Techincal Specification:
 
 | HEIGHT | 6.63 MILLIMETERS NOMINAL |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6, T4 OR T351 FED SPEC SINGLE MATERIAL RESPONSE |  | MATERIAL THICKNESS | 0.56 MILLIMETERS NOMINAL |  | MATERIAL | ALUMINUM ALLOY 2024 |  | OUTSIDE DIAMETER | 3.98 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM |  | SMALLEST DIAMETER | 3.2 MILLIMETERS NOMINAL |  | STYLE DESIGNATOR | TRAPPED CUP |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE |  | SURFACE TREATMENT | ANODIZE | 
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