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National Stock Number:
3940-00-708-0704
Federal Supply Class:
3940
National Item Identification Number:
007080704
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:
| A-A-59390 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | AA59390-C3B8 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | B342 | 64921 | WESTERN PLANT DIV OF THE CROSBY GROUP INC | | MILB11837 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| STYLE DESIGNATOR | ROUND PATTERN | | SHEAVE OUTSIDE DIAMETER | 8.000 INCHES NOMINAL | | CENTER PIN DIAMETER | 1.500 INCHES NOMINAL | | BLOCK TYPE | SNATCH | | LOCKING STYLE | DROP LINK | | MATERIAL AND LOCATION | BRONZE BEARING | | STEEL CENTER PIN | | STEEL SHEAVE | | STEEL SHELL | | SURFACE TREATMENT AND LOCATION | VARNISH OVERALL | | SHEAVE QUANTITY | 2 | | BEARING TYPE | PLAIN | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.875 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | OBLONG SWIVEL EYE AND SHACKLE | | MAXIMUM LOAD RATING | 24000.0 POUNDS | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 58536 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | A-A-59390 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AA59390-C3B8 |
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