National Item Identification Number
National Stock Number
Federal Supply Class
An item usually rigid in construction designed to be attached to another item to adapt it to an eye, ring, loop, or the like, for hoisting. For items designed to be used for hoisting and also provide accommodations for adapting a jack to an aircraft jacking point, see ADAPTER, AIRCRAFT JACKING POINT. Excludes BOLT, EYE; and SLING (as modified).
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
21.000 INCHES NOMINAL
4.000 INCHES NOMINAL