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National Stock Number:
5310-01-321-8611
Federal Supply Class:
5310
National Item Identification Number:
013218611
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:
| K52207P6 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.531 INCHES MINIMUM AND 0.537 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM | | MATERIAL | STEEL COMP 8740 OR STEEL COMP E4340 OVERALL | | RADIUS | 0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM | | RECESS DEPTH | 0.099 INCHES NOMINAL | | STYLE DESIGNATOR | CONCAVE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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