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National Stock Number:
5310-01-616-5607
Federal Supply Class:
5310
National Item Identification Number:
016165607
Description:
WASHER,PRELOAD INDICATING
Detail:
AN ITEM ROUND IN SHAPE HAVING A CENTRALLY LOCATED HOLE. IT CONSISTS OF TWO CONCENTRIC (INNER AND OUTER) STEEL RINGS, THE INNER RING IS SMALLER IN DIAMETER AND HIGHER THAN THE OTHER. THESE RINGS ARE SANDWICHED BETWEEN TWO CLOSE TOLERANCE PLAIN WASHERS. AS THE ASSEMBLY IS TIGHTENED, THE INNER RING TAKES THE LOAD AND IS DEFORMED UNTIL THE LOOSE OUTER RING IS BOUND BETWEEN THE UPPER AND LOWER PLAIN WASHERS AND CANNOT BE MOVED. THE TIGHTENED LOAD IN THE BOLT IS EQUAL TO THE LOAD REQUIRED TO COMPRESS THE INNER RING. WHEN THE BINDING OF THE OUTER RING OCCURS AND CAN NOT BE MOVED, IT IS A SIGN THAT THE DESIRED LOAD HAS BEEN REACHED.
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Manufacturer Information:
| 65736-14-72.9 | 56878 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| SURFACE TREATMENT | CADMIUM OVERALL | | STYLE DESIGNATOR | COUNTERSUNK | | HOLE DIAMETER | 0.875 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.840 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | CAPTIVATED PLI WASHER |
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