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National Stock Number:
3940-00-263-3041
Federal Supply Class:
3940
National Item Identification Number:
002633041
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:
| 1776 | 02154 | ROYSON ENGINEERING COMPANY | | S1801-860466 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| STYLE DESIGNATOR | HALYARD PATTERN | | SHELL LENGTH | 2.938 INCHES NOMINAL | | SHEAVE OUTSIDE DIAMETER | 1.750 INCHES NOMINAL | | CENTER PIN DIAMETER | 0.313 INCHES NOMINAL | | BLOCK TYPE | REGULAR | | MATERIAL AND LOCATION | STEEL BEARING | | STEEL CENTER PIN | | BRONZE SHEAVE | | BRONZE SHELL | | SHEAVE QUANTITY | 1 | | BEARING TYPE | ROLLER | | TACKLE ACCOMMODATED TYPE | FIBROUS ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.312 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | SISTER HOOKS | | MAXIMUM LOAD RATING | 380.0 POUNDS |
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