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National Stock Number:
5310-00-445-4002
Federal Supply Class:
5310
National Item Identification Number:
004454002
Description:
WASHER,FINISHING
Detail:
A WASHER OR CONE OR DISK SHAPE WITH A CENTRALLY LOCATED HOLE, DESIGNED TO ACCOMMODATE A FLAT OR OVAL HEAD SCREW AND PROVIDE ADDITIONAL BEARING AREA ON THE MATERIAL BEING FASTENED. IT MAY OR MAY NOT HAVE A FLUSH FLANGE FEATURE.
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Manufacturer Information:
| 32-33124-9 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | IRON ALLOY 651 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5526 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | FINISHING | | HOLE DIAMETER | 0.257 INCHES MINIMUM AND | | 0.277 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.390 INCHES MINIMUM AND | | 1.410 INCHES MAXIMUM | | OVERALL HEIGHT | 0.115 INCHES MINIMUM AND | | 0.135 INCHES MAXIMUM | | RECESS DIAMETER | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.025 INCHES NOMINAL | | RECESS ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | SPECIAL FEATURES | WITH 9.500 IN. CONVEX RADIUS BEARING SURFACE | | HEAT TREATMENT | AS FABRICATED |
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