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National Stock Number:
5310-00-849-7979
Federal Supply Class:
5310
National Item Identification Number:
008497979
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:
| BACW10AKC8 | 81205 | THE BOEING COMPANY | | BACW10BN8C | 77272 | THE BOEING COMPANY | | BACW10BN8C | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.501 INCHES MINIMUM AND 0.512 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18728 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.064 INCHES MINIMUM AND 0.078 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 8630 OVERALL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.614 INCHES MINIMUM AND 0.634 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 81205-BACW10BN MANUFACTURERS STANDARD | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL AND CADMIUM OVERALL |
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