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National Stock Number:
5310-01-260-4937
Federal Supply Class:
5310
National Item Identification Number:
012604937
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:
| 101301104 | 85105 | NELSON STUD WELDING, INC. | | 12277389 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| HARDNESS RATING | 85.0 ROCKWELL B MINIMUM | | HEAT TREATMENT | COLD ROLLED AND TEMPER, CONDITION 1 | | HOLE DIAMETER | 0.120 INCHES MINIMUM AND 0.129 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.021 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SPECIAL FEATURES | OD CHAMFERED ONE SIDE | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL |
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