NSN 3940-00-950-2956
Part Details | TACKLE BLOCK
3940-00-950-2956 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: GGGB490, GGG-B-490, 3042NS, 3940-00-950-2956, 00-950-2956, 3940009502956, 009502956
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 39 | JAN 01, 1962 | 00-950-2956 | 06117 ( BLOCK, TACKLE ) |
REFERENCE DRAWINGS & PICTURES
JAW AND EYE SWIVEL
ROUND PATTERN
Cross Reference | NSN 3940-00-950-2956
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| GGG-B-490 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| 3042NS | 08TX0 | FOSS-BROWN, INC |
Technical Data | NSN 3940-00-950-2956
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND PATTERN |
| SHELL LENGTH | 4.000 INCHES NOMINAL |
| SHEAVE OUTSIDE DIAMETER | 2.250 INCHES NOMINAL |
| CENTER PIN DIAMETER | 0.375 INCHES NOMINAL |
| BLOCK TYPE | REGULAR |
| SURFACE TREATMENT AND LOCATION | ZINC, HOT DIP OVERALL |
| SHEAVE QUANTITY | 2 |
| BEARING TYPE | PLAIN |
| SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED |
| TACKLE ACCOMMODATED TYPE | FIBROUS 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 | 1600.0 POUNDS |
| SPECIAL FEATURES | SHEAVE THICKNESS AT RIM MIN 0.625 IN. |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE |