NSN 3940-00-227-5570
Part Details | TACKLE BLOCK
3940-00-227-5570 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: GGGB00490, 3940-00-227-5570, 00-227-5570, 3940002275570, 002275570
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) | 
|---|---|---|---|
| 39 | JAN 01, 1963 | 00-227-5570 | 06117 ( BLOCK, TACKLE ) | 
REFERENCE DRAWINGS & PICTURES
OBLONG SWIVEL EYE
							OVAL PATTERN
					Cross Reference | NSN 3940-00-227-5570
| Part Number | Cage Code | Manufacturer | 
|---|---|---|
| GGGB00490 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES | 
Technical Data | NSN 3940-00-227-5570
| Characteristic | Specifications | 
|---|---|
| STYLE DESIGNATOR | OVAL PATTERN | 
| SHELL LENGTH | 12.000 INCHES NOMINAL | 
| SHEAVE OUTSIDE DIAMETER | 8.000 INCHES NOMINAL | 
| CENTER PIN DIAMETER | 0.750 INCHES NOMINAL | 
| BLOCK TYPE | REGULAR | 
| SURFACE TREATMENT AND LOCATION | VARNISH OVERALL | 
| SHEAVE QUANTITY | 2 | 
| BEARING TYPE | PLAIN | 
| SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED | 
| TACKLE ACCOMMODATED TYPE | FIBROUS ROPE | 
| MAXIMUM TACKLE DIAMETER ACCOMMODATED | 1.500 INCHES | 
| TACKLE LOCKING DEVICE | NOT INCLUDED | 
| BECKET TYPE | THIMBLE | 
| BECKET QUANTITY | 1 | 
| ANTITOPPLING DEVICE | NOT INCLUDED | 
| ATTACHMENT STYLE | 6 OBLONG SWIVEL EYE | 
| MAXIMUM LOAD RATING | 10600.0 POUNDS |