National Item Identification Number
00-641-2142
006412142
3940-00-641-2142
3940006412142
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)
7500-1437530 PC 1TO12
7500-1437530ALTAPC1T012
Required Categories
STYLE DESIGNATOR
SHEAVE OUTSIDE DIAMETER
CENTER PIN DIAMETER
BLOCK TYPE
LOCK
Required Description
15 STRAP PATTERN
3.375 INCHES NOMINAL
0.679 INCHES MINIMUM AND
0.681 INCHES M