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National Stock Number:
5310-01-629-0150
Federal Supply Class:
5310
National Item Identification Number:
016290150
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:
| MS21299C20 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | MS21299C20 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | STEEL COMP 4130 OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 1.252 INCHES MINIMUM AND | | 1.256 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.381 INCHES MINIMUM AND | | 2.391 INCHES MAXIMUM | | RECESS DIAMETER | 1.435 INCHES MINIMUM AND | | 1.445 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.099 INCHES MINIMUM AND | | 0.119 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, COUNTERSUNK, FOR USE WITH BOLTS AND NUTS |
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