|
|
|
National Stock Number:
3940-01-083-4224
Federal Supply Class:
3940
National Item Identification Number:
010834224
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:
| MIL-L-28654 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
|
Techincal Specification:
| STYLE DESIGNATOR | OVAL PATTERN | | SHEAVE OUTSIDE DIAMETER | 20.000 INCHES NOMINAL | | MATERIAL AND LOCATION | STEEL, MIL-S-15083, GRADE 80-40 SHEAVE | | STEEL, MIL-S-890 YOKE | | SURFACE TREATMENT AND LOCATION | ZINC, ASTM A153 OVERALL | | SHEAVE QUANTITY | 7 | | BEARING TYPE | ROLLER | | SHEAVE BEARING LUBRICATION METHOD | PRESSURE GREASE FITTING | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 1.000 INCHES | | MAXIMUM LOAD RATING | 800000.0 POUNDS | | NONDEFINITIVE SPEC/STD DATA | 2 GROUP | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81349 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-L-28654 |
|
|