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National Stock Number:
5310-01-393-1323
Federal Supply Class:
5310
National Item Identification Number:
013931323
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:
| 87954E | 86184 | GRISWOLD INDUSTRIES |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 922 OVERALL | | HOLE DIAMETER | 0.875 INCHES MINIMUM AND | | 0.878 INCHES MAXIMUM | | OUTSIDE DIAMETER | 6.428 INCHES MINIMUM AND | | 6.448 INCHES MAXIMUM | | RECESS DIAMETER | 1.240 INCHES MINIMUM AND | | 1.250 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.470 INCHES MINIMUM AND | | 0.530 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SPECIAL FEATURES | 3 LUGS FOR CHUCKING PURPOSES ONLY 120 DEGREES APART BY 0.75 LONG LOCATED AT THE BASE OF THE RECESSED WASHER. | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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