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National Stock Number:
5310-00-004-7046
Federal Supply Class:
5310
National Item Identification Number:
000047046
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:
| A51B21644-15 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51B21644-15 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51B21644-15 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8949 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND | | 49.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.514 INCHES MINIMUM AND | | 0.523 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.750 INCHES NOMINAL | | OVERALL HEIGHT | 0.187 INCHES NOMINAL | | RECESS DIAMETER | 0.604 INCHES MINIMUM AND | | 0.620 INCHES MAXIMUM | | RECESS DEPTH | 0.094 INCHES NOMINAL | | MATERIAL THICKNESS | 0.187 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SPECIAL FEATURES | ONE BEARING SURFACE CHAMFERED 0.125 IN. BY 45 DEG | | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | | HEAT TREATMENT | QUENCHED AND | | TEMPERED | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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