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National Stock Number:
3940-00-638-7945
Federal Supply Class:
3940
National Item Identification Number:
006387945
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:
| 4585267 | 18355 | THE BOEING COMPANY | | 4585267 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| ANTITOPPLING DEVICE | NOT INCLUDED | | BEARING TYPE | BALL | | BLOCK TYPE | REGULAR | | CENTER PIN DIAMETER | 0.250 INCHES NOMINAL | | MATERIAL | ALUMINUM SHEAVE | | MATERIAL | MAGNESIUM SHELL | | MATERIAL | STEEL BEARING | | MATERIAL | STEEL CENTER PIN | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.250 INCHES | | SHEAVE OUTSIDE DIAMETER | 1.938 INCHES NOMINAL | | SHEAVE QUANTITY | 1 | | STYLE DESIGNATOR | OVAL PATTERN | | SURFACE TREATMENT | ANODIZE SHEAVE | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | TACKLE LOCKING DEVICE | NOT INCLUDED |
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