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National Stock Number:
3940-00-199-7675
Federal Supply Class:
3940
National Item Identification Number:
001997675
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:
| 4002H | 71110 | BREWER-TITCHNER CORP SUB JOSLYN MFG AND SUPPLY CO | | MIL-B-24141 | 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 | DIAMOND PATTERN | | SHEAVE OUTSIDE DIAMETER | 8.000 INCHES NOMINAL | | CENTER PIN DIAMETER | 0.875 INCHES NOMINAL | | BLOCK TYPE | REGULAR | | MATERIAL AND LOCATION | BRONZE BEARING | | STEEL, FED STD 66, AISI/SAE 1040 CENTER PIN | | STEEL, QQ-S-681 SHEAVE | | IRON SHELL AND | | STEEL, CARBON, QQ-S-633-CANCELED SHELL AND | | STEEL, QQ-S-681 SHELL | | SURFACE TREATMENT AND LOCATION | ZINC, HOT DIP OVERALL | | SHEAVE QUANTITY | 2 | | BEARING TYPE | PLAIN | | SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | | TACKLE ACCOMMODATED TYPE | WIRE ROPE | | MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.500 INCHES | | TACKLE LOCKING DEVICE | NOT INCLUDED | | BECKET TYPE | THIMBLE | | BECKET QUANTITY | 1 | | ANTITOPPLING DEVICE | NOT INCLUDED | | ATTACHMENT STYLE | JAW AND EYE SWIVEL | | MAXIMUM LOAD RATING | 7000.0 POUNDS | | NONDEFINITIVE SPEC/STD DATA | II TYPE AND | | 2 CLASS | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81349 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-B-24141 |
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