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National Stock Number:
3940-00-494-0833
Federal Supply Class:
3940
National Item Identification Number:
004940833
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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Techincal Specification:
| ATTACHMENT STYLE | ROUND SWIVEL EYE | | SHEAVE OUTSIDE DIAMETER | 1.000 INCHES NOMINAL | | STYLE DESIGNATOR | PULLEY PATTERN | | ANTITOPPLING DEVICE | NOT INCLUDED | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.250 INCHES | | MATERIAL AND LOCATION | STEEL CENTER PIN AND STEEL SHEAVE AND STEEL SHELL AND STEEL OVERALL | | SURFACE TREATMENT AND LOCATION | ZINC, HOT DIP OVERALL | | SHEAVE QUANTITY | 2 | | TACKLE ACCOMMODATED TYPE | FIBROUS ROPE | | TACKLE LOCKING DEVICE | NOT INCLUDED | | BLOCK TYPE | REGULAR |
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