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National Stock Number:
5310-00-493-4021
Federal Supply Class:
5310
National Item Identification Number:
004934021
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:
| 12K415-7 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 0.214 INCHES MINIMUM AND 0.234 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.532 INCHES MINIMUM AND 0.592 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.016 INCHES NOMINAL | | MATERIAL | STEEL COMP 321 OVERALL | | RECESS ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | RECESS DIAMETER | 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM | | STYLE DESIGNATOR | FINISHING |
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