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National Stock Number:
3940-00-599-9977
Federal Supply Class:
3940
National Item Identification Number:
005999977
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:
| GGGB485 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| ATTACHMENT STYLE | FLATTED STIFF SWIVEL SAFETY SNAP HOOK | | BEARING TYPE | BALL AND ROLLER | | BECKET QUANTITY | 1 | | BECKET TYPE | THIMBLE | | BLOCK TYPE | REGULAR | | LOAD RATING | 40000.0 POUNDS MAXIMUM | | MATERIAL | STEEL OVERALL | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.750 INCHES | | NONDEFINITIVE SPEC/STD DATA | 20 SIZE | | SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | | SHEAVE OUTSIDE DIAMETER | 14.000 INCHES NOMINAL | | SHEAVE QUANTITY | 2 | | STYLE DESIGNATOR | DIAMOND PATTERN | | SURFACE TREATMENT | PAINT OVERALL | | TACKLE ACCOMMODATED TYPE | WIRE ROPE |
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