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National Stock Number:
5310-00-476-7367
Federal Supply Class:
5310
National Item Identification Number:
004767367
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:
| 10121404 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 5310PL0195789 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | NAS1587-4C | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| MATERIAL | STEEL COMP 321 OR | | STEEL COMP 347 OR | | STEEL COMP 348 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR | | QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR | | MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.252 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.531 INCHES NOMINAL | | RECESS DIAMETER | 0.334 INCHES MINIMUM AND | | 0.344 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.078 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM | | SPECIFICATION/STANDARD DATA | 80205-NAS1587 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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