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National Stock Number:
3940-01-373-2734
Federal Supply Class:
3940
National Item Identification Number:
013732734
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:
| MIL-B-24220 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MILB24220TYIIIC L1SZ12RIG25 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | OBLONG SWIVEL EYE AND SHACKLE | | BEARING TYPE | PLAIN | | BLOCK TYPE | REGULAR | | CENTER PIN DIAMETER | 1.000 INCHES MINIMUM | | LOAD RATING | 15000.0 POUNDS MAXIMUM | | MATERIAL | STEEL CENTER PIN | | MATERIAL | STEEL SHEAVE | | MATERIAL | WOOD SHELL | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 1.938 INCHES | | NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 1 CLASS AND 12 SIZE | | SHEAVE OUTSIDE DIAMETER | 8.000 INCHES MINIMUM | | SHEAVE QUANTITY | 2 | | SHELL LENGTH | 12.000 INCHES MINIMUM | | SPECIAL FEATURES | RIG NO. 1 | | STYLE DESIGNATOR | HALF-OVAL PATTERN | | SURFACE TREATMENT | ZINC SHEAVE | | TACKLE ACCOMMODATED TYPE | FIBROUS ROPE | | TACKLE LOCKING DEVICE | INCLUDED |
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