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National Stock Number:
5310-00-249-5178
Federal Supply Class:
5310
National Item Identification Number:
002495178
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:
| B312001099-1 | 14804 | SINGER CO THE KEARFOTT DIV | | B312001099-1 | 88818 | KEARFOTT CORPORATION |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,TEMPER T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 3 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.620 INCHES MINIMUM AND | | 0.630 INCHES MAXIMUM | | RECESS DIAMETER | 0.760 INCHES MINIMUM AND | | 0.770 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.312 INCHES NOMINAL | | RECESS ANGLE | 79.0 DEGREES MINIMUM AND | | 81.0 DEGREES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES TOP | | 32.0 MICROINCHES BOTTOM | | SPECIAL FEATURES | 2 HOLES 0.055 IN. DIA BY 0.017 IN. DEEP LOCATED ON RECESSED SIDE ON 1.312 IN. CIRCLE DIA 180 DEG APART | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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