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National Stock Number:
5310-00-439-2542
Federal Supply Class:
5310
National Item Identification Number:
004392542
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:
| B312201013-1 | 88818 | KEARFOTT CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL COMP 416 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | B190000120,FSCM 14804 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.557 INCHES MINIMUM AND | | 0.567 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.995 INCHES MINIMUM AND | | 1.005 INCHES MAXIMUM | | RECESS DIAMETER | 0.775 INCHES MINIMUM AND | | 0.785 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.197 INCHES MINIMUM AND | | 0.203 INCHES MAXIMUM | | RECESS ANGLE | 59.0 DEGREES MINIMUM AND | | 61.0 DEGREES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SPECIAL FEATURES | 32 MICROINCH AA FINISH ON COUNTERSUNK SURFACE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 88818 | | DESIGN CONTROL REFERENCE | B312201013-1 |
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