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National Stock Number:
5310-01-101-4948
Federal Supply Class:
5310
National Item Identification Number:
011014948
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:
| 10122139 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 5310PL0211602 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | MS9768-10 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR | | AMS 5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 29.0 ROCKWELL C MINIMUM AND | | 39.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | HOLE DIAMETER | 0.252 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.615 INCHES MINIMUM AND | | 0.635 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.075 INCHES MINIMUM AND | | 0.085 INCHES MAXIMUM | | TOP RECESS DIAMETER | 0.308 INCHES NOMINAL | | BOTTOM RECESS DIAMETER | 0.308 INCHES NOMINAL | | BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9768-10 |
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