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National Stock Number: 3940-00-202-2179
Federal Supply Class: 3940
National Item Identification Number: 002022179
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:
368SIZE7AND251SIZE2 | 79577 | NORTH AND JUDD INC WILCOX-CRITTENDEN DIV |
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Techincal Specification:
STYLE DESIGNATOR | HALYARD PATTERN | SHELL LENGTH | 2.250 INCHES NOMINAL | SHEAVE OUTSIDE DIAMETER | 1.500 INCHES NOMINAL | CENTER PIN DIAMETER | 0.188 INCHES NOMINAL | BLOCK TYPE | REGULAR | MATERIAL AND LOCATION | IRON BEARING | | STEEL CENTER PIN | | IRON SHEAVE | | IRON SHELL | SURFACE TREATMENT AND LOCATION | ZINC, ELECTROLYTIC OVERALL | SHEAVE QUANTITY | 1 | BEARING TYPE | PLAIN | TACKLE ACCOMMODATED TYPE | FIBROUS ROPE | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.375 INCHES | TACKLE LOCKING DEVICE | NOT INCLUDED | ANTITOPPLING DEVICE | NOT INCLUDED | ATTACHMENT STYLE | FLATTED LOOSE SWIVEL SAFETY SNAP HOOK |
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