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National Stock Number:
5310-01-218-1481
Federal Supply Class:
5310
National Item Identification Number:
012181481
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:
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Techincal Specification:
| BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | | HARDNESS RATING | 88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM | | HOLE DIAMETER | 1.505 INCHES MINIMUM AND 1.509 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | JDM 1117 CD, FSCM 75160 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1018 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 1.969 INCHES NOMINAL | | SPECIAL FEATURES | BOTTOM RECESSED DEPTH 0.030 IN. IN DIA | | RECESS DEPTH | 0.030 INCHES NOMINAL | | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL |
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