National Item Identification Number
00-468-8521
004688521
3940-00-468-8521
3940004688521
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)
81316
PORTSMOUTH NAVAL SHIPYARD
PORTSMOUTH NAVAL SHIPYARD BLDG 170
KITTERY
ME
03904
207-438-4570
Reference Numbers (Part Numbers)
216-381
544535
Required Categories
STYLE DESIGNATOR
SHEAVE OUTSIDE DIAMETER
CENTER PIN DIAMETER
BLOCK TYPE
MATE
Required Description
3 ROUND PATTERN
12.500 INCHES NOMINAL
1.497 INCHES NOMINAL
REGULAR
MANGANESE