9320-00-202-2177 BELLOWS,PROTECTION Index 3940-00-202-2187 BLOCK,TACKLE

National Stock Number:
3940-00-202-2179

Federal Supply Class:
3940

National Item Identification Number:
002022179

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:
368SIZE7AND251SIZE279577NORTH AND JUDD INC WILCOX-CRITTENDEN DIV


Techincal Specification:
STYLE DESIGNATORHALYARD PATTERN
SHELL LENGTH2.250 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER1.500 INCHES NOMINAL
CENTER PIN DIAMETER0.188 INCHES NOMINAL
BLOCK TYPEREGULAR
MATERIAL AND LOCATIONIRON BEARING
STEEL CENTER PIN
IRON SHEAVE
IRON SHELL
SURFACE TREATMENT AND LOCATIONZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY1
BEARING TYPEPLAIN
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.375 INCHES
TACKLE LOCKING DEVICENOT INCLUDED
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEFLATTED LOOSE SWIVEL SAFETY SNAP HOOK


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