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National Stock Number:
3940-01-478-2946
Federal Supply Class:
3940
National Item Identification Number:
014782946
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:
| 701-1899324 | 53711 | NAVAL SEA SYSTEMS COMMAND | | CVAN65-701-1899324 ASSY 196 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BLOCK TYPE | REGULAR | | MATERIAL AND LOCATION | STEEL OVERALL | | SHEAVE QUANTITY | 2 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | PREPACKED WITH GREASE | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.500 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | ANTITOPPLING DEVICE | NOT INCLUDED | | SPECIAL FEATURES | EACH SHEAVE IS 4.5 INCH OD; AFFIXED TO A BLOCK 3.0 INCH FROM THE BASE AND 5.0 INCH BETWEEN CENTERS; ITEM IS CALLED A SHEAVE ASSY |
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