|
|
|
National Stock Number:
5310-00-253-7651
Federal Supply Class:
5310
National Item Identification Number:
002537651
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.
|
Manufacturer Information:
| S1620-64175-4 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
|
Techincal Specification:
| MATERIAL | STEEL CORROSION RESISTING OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS-8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 33.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.375 INCHES MINIMUM AND | | 0.380 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.625 INCHES NOMINAL | | OVERALL HEIGHT | 0.188 INCHES NOMINAL | | RECESS DEPTH | 0.125 INCHES NOMINAL | | MATERIAL THICKNESS | 0.131 INCHES MINIMUM AND | | 0.136 INCHES MAXIMUM | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | S1620-64175-4 |
|
|