National Item Identification Number

00-494-0833
004940833
3940-00-494-0833
3940004940833

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)

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Reference Numbers (Part Numbers)

Required Categories

STYLE DESIGNATOR
SHEAVE OUTSIDE DIAMETER
BLOCK TYPE
MATERIAL AND LOCATION
SU

Required Description

20 PULLEY PATTERN
1.000 INCHES NOMINAL
REGULAR
STEEL CENTER PIN
STEEL SHEAVE