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National Stock Number:
3940-00-239-8778
Federal Supply Class:
3940
National Item Identification Number:
002398778
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:
| GG-B-500 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | GGGB500 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| STYLE DESIGNATOR | DIAMOND PATTERN | | SHEAVE OUTSIDE DIAMETER | 10.000 INCHES NOMINAL | | BLOCK TYPE | REGULAR | | MATERIAL AND LOCATION | BRONZE MIL-B-5687 TYPE 1 COMP A BEARING | | STEEL CENTER PIN | | STEEL, QQ-S-681 SHEAVE | | STEEL, QQ-S-741 SHELL | | SURFACE TREATMENT AND LOCATION | ZINC MIL-Z-17871 CENTER PIN | | ZINC MIL-Z-17871 SHEAVE | | ZINC MIL-Z-17871 SHELL | | SHEAVE QUANTITY | 2 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.625 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | BECKET TYPE | THIMBLE | | BECKET QUANTITY | 1 | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | FLATTED LOOSE SWIVEL EYE WITH SWIVEL HOOK | | MAXIMUM LOAD RATING | 600.0 POUNDS | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND | | A GRADE AND | | 2 STYLE | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | GG-B-500 |
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