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National Stock Number:
3940-00-222-8399
Federal Supply Class:
3940
National Item Identification Number:
002228399
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:
| S1801-860427PC1-2-4T09-24-26-27 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BEARING TYPE | ROLLER | | BLOCK TYPE | REGULAR | | CENTER PIN DIAMETER | 0.375 INCHES NOMINAL | | LOAD RATING | 1000.0 POUNDS MAXIMUM | | MATERIAL | STEEL OVERALL | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.562 INCHES | | SHEAVE OUTSIDE DIAMETER | 2.875 INCHES NOMINAL | | SHEAVE QUANTITY | 1 | | SHELL LENGTH | 4.000 INCHES NOMINAL | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | SIZE 4 IN.,RIG NO. 18 | | STYLE DESIGNATOR | OVAL PATTERN | | SURFACE TREATMENT | ZINC OVERALL | | TACKLE ACCOMMODATED TYPE | FIBROUS ROPE |
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