National Item Identification Number
00-297-2030
002972030
3940-00-297-2030
3940002972030
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)
49956
80063
Reference Numbers (Part Numbers)
C23Z61606
SMC185618
Required Categories
STYLE DESIGNATOR
SHELL LENGTH
SHEAVE OUTSIDE DIAMETER
CENTER PIN DIAMETER
BL
Required Description
2 OVAL PATTERN
4.000 INCHES NOMINAL
2.250 INCHES NOMINAL
0.312 INCHES NOMINAL