The 82-501222A6TK is a wear indicator tool kit (WIP kit) used for inspecting and measuring vane wear in aircraft dry vacuum pumps. It is part of the Tempest maintenance tool system used on 200/240/400 series vacuum pumps.

The kit allows technicians to determine whether internal pump vanes are within service limits without disassembly, helping assess pump health during scheduled maintenance.

Key features include:

Complete wear indicator inspection kit for vacuum pumps
Includes:1 × WIP Tool (82-501222A6T)
3 × Star lockwashers (82-50122-2A2)
3 × Hole plugs (82-50122-2A1) 
Used for internal vane wear measurement in dry air pumps
Designed for field inspection without pump teardown
Supports preventive maintenance and failure prediction
Compatible with Tempest Tornado 200/240/400 series pumps
FAA maintenance-use tooling (A&P/IA level inspection tool)
This kit is widely used in general aviation maintenance environments (A&P mechanics and MRO shops) to quickly determine whether a vacuum pump is still serviceable or approaching end-of-life due to vane wear.