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National Stock Number: 5310-01-363-1586
Federal Supply Class: 5310
National Item Identification Number: 013631586
Description: WASHER,RECESSED
Detail: A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.
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Manufacturer Information:
4D0028C8 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM | HOLE DIAMETER | 0.501 INCHES MINIMUM AND 0.505 INCHES MAXIMUM | OUTSIDE DIAMETER | 0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL THICKNESS | 0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM | MATERIAL | STEEL COMP 4130 OVERALL | RECESS ANGLE | 90.0 DEGREES NOMINAL | RECESS DIAMETER | 0.614 INCHES MINIMUM AND 0.624 INCHES MAXIMUM | STYLE DESIGNATOR | RECESSED | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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