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National Stock Number:
5310-01-128-6688
Federal Supply Class:
5310
National Item Identification Number:
011286688
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:
| 10109503 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | ST4M150-7001 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.441 INCHES MINIMUM AND 0.451 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.625 INCHES MINIMUM AND 0.645 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.074 INCHES MINIMUM AND 0.082 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OVERALL | | RECESS ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM | | RECESS DIAMETER | 0.551 INCHES MINIMUM AND 0.561 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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