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National Stock Number:
5310-01-423-6701
Federal Supply Class:
5310
National Item Identification Number:
014236701
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:
| LD153-0027A1004 | 43999 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.251 INCHES MINIMUM AND | | 0.255 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.428 INCHES MINIMUM AND | | 0.458 INCHES MAXIMUM | | RECESS DIAMETER | 0.340 INCHES MINIMUM AND | | 0.350 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.061 INCHES MINIMUM AND | | 0.071 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SPECIAL FEATURES | WASHER TO BE USED PRIMARILY WITH BOLTS HAVING A TENSILE STRENGTH OF 220 MIN KSI. |
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