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National Stock Number:
3940-01-442-9789
Federal Supply Class:
3940
National Item Identification Number:
014429789
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:
| 7D3-05679 | 34712 | LAKE SHORE SYSTEMS, INC. | | 7D5-05660 REV B ITEM 9 | 34712 | LAKE SHORE SYSTEMS, INC. |
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Techincal Specification:
| STYLE DESIGNATOR | HOISTER PATTERN | | SHELL LENGTH | 20.000 INCHES NOMINAL | | SHEAVE OUTSIDE DIAMETER | 14.000 INCHES NOMINAL | | CENTER PIN DIAMETER | 0.500 INCHES NOMINAL | | BLOCK TYPE | REGULAR | | MATERIAL AND LOCATION | STEEL OVERALL | | SHEAVE QUANTITY | 1 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | PRESSURE GREASE FITTING | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.500 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | SWIVEL JAW AND GUY EYES | | SPECIAL FEATURES | 40.72 IN. FROM CENTER POINT OF SHEAVE TO LOAD BEARING SURFACE OF HOOK; STEEL CONSTRUCTION WITH PLASTIC SHIMSAGAVGAOE10 DAVIT |
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