Part Details | TACKLE BLOCK
3940-00-053-8890 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: 3940BL0AL720, 3940-00-053-8890, 00-053-8890, 3940000538890, 000538890
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 39 | JAN 01, 1961 | 00-053-8890 | 06117 ( BLOCK, TACKLE ) |
REFERENCE DRAWINGS & PICTURES
OBLONG SWIVEL EYE
OVAL PATTERN
Cross Reference | NSN 3940-00-053-8890
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 3940BL0AL720 | 89227 | MARITIME ADMINISTRATION |
Technical Data | NSN 3940-00-053-8890
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | OVAL PATTERN |
| SHEAVE OUTSIDE DIAMETER | 20.000 INCHES NOMINAL |
| CENTER PIN DIAMETER | 2.500 INCHES NOMINAL |
| BLOCK TYPE | REGULAR |
| SHEAVE QUANTITY | 5 |
| BEARING TYPE | PLAIN |
| SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED |
| TACKLE ACCOMMODATED TYPE | WIRE ROPE |
| MAXIMUM TACKLE DIAMETER ACCOMMODATED | 1.125 INCHES |
| TACKLE LOCKING DEVICE | NOT INCLUDED |
| ANTITOPPLING DEVICE | NOT INCLUDED |
| ATTACHMENT STYLE | 4 OBLONG SWIVEL EYE |
| SPECIAL FEATURES | W/ FOUR EARED REVERSE SHACKEL |