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National Stock Number:
3940-00-641-2142
Federal Supply Class:
3940
National Item Identification Number:
006412142
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:
| 7500-1437530 PC 1T012 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 7500-1437530 PC 1TO12 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 7500-1437530ALTAPC1T012 | 81316 | PORTSMOUTH NAVAL SHIPYARD |
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Techincal Specification:
| STYLE DESIGNATOR | STRAP PATTERN | | SHEAVE OUTSIDE DIAMETER | 3.375 INCHES NOMINAL | | CENTER PIN DIAMETER | 0.679 INCHES MINIMUM AND | | 0.681 INCHES MAXIMUM | | BLOCK TYPE | SNATCH | | LOCKING STYLE | SAFETY W/LATCH PIN | | MATERIAL AND LOCATION | BRONZE BEARING | | ALUMINUM CENTER PIN | | ALUMINUM SHEAVE | | ALUMINUM SHELL | | SHEAVE QUANTITY | 1 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.875 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | STIFF, UPSET SWIVEL SHACKLE | | MAXIMUM LOAD RATING | 2500.0 POUNDS |
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