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National Stock Number:
5310-00-891-3398
Federal Supply Class:
5310
National Item Identification Number:
008913398
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:
| 51404S4 | 84256 | AVIBANK MFG., INC. | | AS159-S4 | 84256 | AVIBANK MFG., INC. | | AS159S4/51404S4 | 84256 | AVIBANK MFG., INC. |
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Techincal Specification:
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.505 INCHES MINIMUM AND 0.523 INCHES MAXIMUM | | OVERALL HEIGHT | 0.216 INCHES MINIMUM AND 0.225 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL THICKNESS | 0.101 INCHES MINIMUM AND 0.107 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1330 OR STEEL COMP 4130 OR STEEL COMP 3130 OVERALL | | RECESS DEPTH | 0.153 INCHES MINIMUM AND 0.162 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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