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National Stock Number:
3940-00-264-4730
Federal Supply Class:
3940
National Item Identification Number:
002644730
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:
| S1801-860455PC1T013-19-23-28-29 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BEARING TYPE | PLAIN | | BECKET TYPE | THIMBLE | | BECKET QUANTITY | 1 | | BLOCK TYPE | REGULAR | | CENTER PIN DIAMETER | 1.625 INCHES NOMINAL | | LOAD RATING | 28000.0 POUNDS MAXIMUM | | MATERIAL | STEEL OVERALL | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 2.250 INCHES | | SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | | SHEAVE OUTSIDE DIAMETER | 11.625 INCHES NOMINAL | | SHEAVE QUANTITY | 2 | | SHELL LENGTH | 18.000 INCHES NOMINAL | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | SIZE 18 IN.,RIG NO. 1 | | STYLE DESIGNATOR | OVAL PATTERN | | SURFACE TREATMENT | ZINC OVERALL | | TACKLE ACCOMMODATED TYPE | FIBROUS ROPE |
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