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National Stock Number:
3940-01-504-3468
Federal Supply Class:
3940
National Item Identification Number:
015043468
Description:
BLOCK,TACKLE
Detail:
A MECHANICAL DEVICE, CONSISTING OF A PULLEY(S) OR SHEAVE(S) ENCASED IN A SHELL OR FRAME WHICH MAY BE PROVIDED WITH A MEANS SUCH AS A HOOK, EYE, STRAP, SCREW, ETC., BY WHICH IT MAY BE ATTACHED TO AN OBJECT. IT IS USED TO CHANGE DIRECTION OF A RUNNING ROPE AND/OR TO GAIN A MECHANICAL ADVANTAGE.
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Manufacturer Information:
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Techincal Specification:
| CENTER PIN DIAMETER | 0.312 INCHES NOMINAL | | SECOND SHEAVE OUTSIDE DIAMETER | 2.000 INCHES NOMINAL | | SHEAVE OUTSIDE DIAMETER | 3.000 INCHES NOMINAL | | SHEAVE QUANTITY | 2 | | SHELL LENGTH | 9.500 INCHES NOMINAL | | SPECIAL FEATURES | FIDDLE W/BECKET |
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