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National Stock Number:
3940-00-436-9258
Federal Supply Class:
3940
National Item Identification Number:
004369258
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:
| 10162237 | 00641 | FORWAY INDUSTRIES INC | | 10162237 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| BEARING TYPE | BALL | | BLOCK TYPE | REGULAR | | CENTER PIN DIAMETER | 0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | SHELL LENGTH | 11.000 INCHES NOMINAL | | SHEAVE OUTSIDE DIAMETER | 6.000 INCHES NOMINAL | | SHEAVE QUANTITY | 1 | | STYLE DESIGNATOR | OVAL PATTERN | | SURFACE TREATMENT | PAINT OVERALL |
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