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National Stock Number: 3940-00-141-7196
Federal Supply Class: 3940
National Item Identification Number: 001417196
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:
MIL-B-12582 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
ANTITOPPLING DEVICE | NOT INCLUDED | ATTACHMENT STYLE | CHAIN SHACKLE | BEARING TYPE | ROLLER | BLOCK TYPE | REGULAR | MATERIAL AND LOCATION | STEEL OVERALL | MAXIMUM LOAD RATING | 4000.0 POUNDS | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.625 INCHES | SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | SHEAVE QUANTITY | 1 | SHEAVE OUTSIDE DIAMETER | 8.000 INCHES NOMINAL | SPECIAL FEATURES | SHEAVE WIDTH 1.375 IN. | STYLE DESIGNATOR | HALF-ROUND PATTERN | TACKLE ACCOMMODATED TYPE | WIRE ROPE | TACKLE LOCKING DEVICE | NOT INCLUDED |
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