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National Stock Number:
5310-00-023-4771
Federal Supply Class:
5310
National Item Identification Number:
000234771
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:
| 10116498 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 4084-04 | 019L2 | ESNA, LLC | | 4084-04 | 72962 | HARVARD INDUSTRIES INC | | NAS1288-4W | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| HARDNESS RATING | 41.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.457 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM | | MATERIAL | STEEL COMP 601 OVERALL | | RECESS DIAMETER | 0.420 INCHES MINIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2417 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2417 ASSN STD 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL AND ZINC OVERALL |
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