|
|
|
National Stock Number:
3940-00-264-4741
Federal Supply Class:
3940
National Item Identification Number:
002644741
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.
|
Manufacturer Information:
| 2644741 | 08TX0 | FOSS-BROWN, INC | | S1801-770370PC1-3T020 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
|
Techincal Specification:
| STYLE DESIGNATOR | DIAMOND PATTERN | | SHEAVE OUTSIDE DIAMETER | 20.000 INCHES NOMINAL | | CENTER PIN DIAMETER | 2.247 INCHES NOMINAL | | BLOCK TYPE | REGULAR | | MATERIAL AND LOCATION | BRONZE BEARING AND | | STEEL CENTER PIN AND | | STEEL SHEAVE AND | | STEEL SHELL | | SURFACE TREATMENT AND LOCATION | GALVANIZED OVERALL | | SHEAVE QUANTITY | 4 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | PRESSURE GREASE FITTING | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.875 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | ANTITOPPLING DEVICE | NOT INCLUDED | | SPECIAL FEATURES | AS DIFFERENTIATED BY 0.875 IN WIREROPE SIZE,QUADRUPLE BLOCK |
|
|