National Item Identification Number
00-285-8219
002858219
3940-00-285-8219
3940002858219
National Stock Number
Item Name
BLOCK,TACKLE
Federal Supply Class
3940
Description
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.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
S1801-921894PC1T031
805-2555039
921894 PIECE 1 THRU 31
Required Categories
SHELL LENGTH
SHEAVE OUTSIDE DIAMETER
CENTER PIN DIAMETER
BLOCK TYPE
MATERIAL
Required Description
10.500 INCHES NOMINAL
8.000 INCHES NOMINAL
0.875 INCHES NOMINAL
REGULAR
STEE