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		                        | National Stock Number:
 5310-01-613-4265
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 016134265
 
 Description:
 WASHER,CONCAVE
 
 Detail:
 A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.
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 Manufacturer Information:
 
 | K52207-P08 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | 
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 Techincal Specification:
 
 | MATERIAL | STEEL COMP 4340 OR |  |  | STEEL COMP 8740 OVERALL |  | SURFACE TREATMENT | CADMIUM OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | STYLE DESIGNATOR | CONCAVE |  | HOLE DIAMETER | 0.213 INCHES MINIMUM AND |  |  | 0.219 INCHES MAXIMUM |  | RADIUS | 0.169 INCHES MINIMUM AND |  |  | 0.174 INCHES MAXIMUM |  | OUTSIDE DIAMETER | 0.305 INCHES MINIMUM AND |  |  | 0.315 INCHES MAXIMUM |  | MATERIAL THICKNESS | 0.055 INCHES MINIMUM AND |  |  | 0.065 INCHES MAXIMUM |  | SPECIAL FEATURES | APPLICATION TEMP 450 DEG F; HEAT TREAT RC 38-44 PER AMS-H-6875 |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, SELF-ALIGNING, CONCAVE | 
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