NSN 3940-00-227-5521

Part Details | TACKLE BLOCK

3940-00-227-5521 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.

Alternate Parts: S1801860441PC129T01114161, S1801-860441PC1-2-9T011-14-16-1-, 3940-00-227-5521, 00-227-5521, 3940002275521, 002275521

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196300-227-552106117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

OVAL PATTERN

BLOCK,TACKLE | 3940-00-227-5521, 002275521
Cross Reference | NSN 3940-00-227-5521
Part Number Cage Code Manufacturer
S1801-860441PC1-2-9T011-14-16-1-80064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 3940-00-227-5521
Characteristic Specifications
STYLE DESIGNATOR OVAL PATTERN
SHELL LENGTH8.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER5.500 INCHES NOMINAL
CENTER PIN DIAMETER0.625 INCHES NOMINAL
MATERIAL AND LOCATION STEEL OVERALL
SURFACE TREATMENT AND LOCATION ZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY3
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE ACCOMMODATED TYPE FIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED1.000 INCHES
MAXIMUM LOAD RATING7050.0 POUNDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSELP NO. SIZE 8 IN.,RIG NO. 4