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National Stock Number:
5310-01-054-0851
Federal Supply Class:
5310
National Item Identification Number:
010540851
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:
| 204-90062-1 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | STEEL COMP 4130 OR | | STEEL COMP 4140 OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | F-1.1930,FSCM 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 33.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.378 INCHES MINIMUM AND | | 0.388 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.605 INCHES MINIMUM AND | | 0.615 INCHES MAXIMUM | | RECESS DIAMETER | 0.438 INCHES MINIMUM AND | | 0.448 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.078 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SPECIAL FEATURES | 0.033 IN. MIN,0.043 IN. MAX BY 45 DEG CHAMFER ON SIDE OPPOSITE RECESS | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 81205 | | DESIGN CONTROL REFERENCE | 204-90062-1 |
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