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National Stock Number:
5310-01-289-2590
Federal Supply Class:
5310
National Item Identification Number:
012892590
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:
| 1500AS103-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| HOLE DIAMETER | 1.252 INCHES MINIMUM AND 1.254 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.435 INCHES MINIMUM AND 2.437 INCHES MAXIMUM | | OVERALL HEIGHT | 0.272 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1018 OVERALL | | RECESS DEPTH | 0.050 INCHES MINIMUM AND 0.052 INCHES MAXIMUM | | RECESS DIAMETER | 2.0625 INCHES NOMINAL | | SPECIAL FEATURES | INSIDE STEP DIA 1.495 IN. MIN,1.500 IN. MAX | | STYLE DESIGNATOR | RECESSED | | SURFACE FINISH | 16.0 MICROINCHES OUTER | | SURFACE FINISH | 32.0 MICROINCHES COUNTERBORE FACE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-B-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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