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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:
STYLE DESIGNATOR | OVAL PATTERN | SHEAVE OUTSIDE DIAMETER | 1.938 INCHES NOMINAL | CENTER PIN DIAMETER | 0.250 INCHES NOMINAL | BLOCK TYPE | REGULAR | MATERIAL AND LOCATION | ALUMINUM SHEAVE | | MAGNESIUM SHELL | | STEEL BEARING | | STEEL CENTER PIN | SURFACE TREATMENT AND LOCATION | ANODIZED SHEAVE | SHEAVE QUANTITY | 1 | BEARING TYPE | BALL | TACKLE ACCOMMODATED TYPE | WIRE ROPE | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.250 INCHES | TACKLE LOCKING DEVICE | NOT INCLUDED | ANTITOPPLING DEVICE | NOT INCLUDED | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 88277 | DESIGN CONTROL REFERENCE | 4585267 |
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