National Item Identification Number
00-638-7945
006387945
3940-00-638-7945
3940006387945
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)
18355
88277
Reference Numbers (Part Numbers)
4585267
4585267
Required Categories
STYLE DESIGNATOR
SHELL LENGTH
SHEAVE OUTSIDE DIAMETER
CENTER PIN DIAMETER
BL
Required Description
2 OVAL PATTERN
ANY ACCEPTABLE
1.938 INCHES NOMINAL
0.250 INCHES NOMINAL
REGU