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National Stock Number:
3940-00-489-8340
Federal Supply Class:
3940
National Item Identification Number:
004898340
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:
| 8337021-1 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 8383238-1 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| STYLE DESIGNATOR | STRAP AND PLATE PATTERN | | SHEAVE OUTSIDE DIAMETER | 12.000 INCHES NOMINAL | | CENTER PIN DIAMETER | 1.751 INCHES MINIMUM AND | | 1.752 INCHES MAXIMUM | | BLOCK TYPE | SNATCH | | LOCKING STYLE | DROP LINK | | MATERIAL AND LOCATION | BRONZE BEARING AND | | STEEL, QQ-S-633, FS1010 TO FS1020-CANCELED CENTER PIN | | STEEL, QQ-S-681, CLASS 80-40 SHEAVE AND | | STEEL, QQ-S-681 SHELL | | SURFACE TREATMENT AND LOCATION | ENAMEL, TT-E-529 OVERALL | | SHEAVE QUANTITY | 1 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | PRESSURE GREASE FITTING | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 1.000 INCHES | | TACKLE LOCKING DEVICE | INCLUDED | | BECKET TYPE | SWIVEL EYE | | BECKET QUANTITY | 1 | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | STIFF, UPSET SWIVEL SHACKLE | | MAXIMUM LOAD RATING | 50000.0 POUNDS |
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