KK2P-06H SMT vacuum nozzle tip
Technical Breakdown of the Component

• Manufacturer: SMC Corporation 
• Part Number: KK2P-06H
• Component Type: S Coupler (Straight Quick-Connect Plug) 
• Connection Port: 6mm Outer Diameter (O.D.) One-Touch push-in connection for pneumatic/vacuum tubing 
• Body Size / Threads: M5 nominal body sizing 
• Flow Optimization: Ball-less and springless inner flow path engineering designed to maximize effective vacuum flow area and eliminate restrictions during high-speed component placements. 

If you are aiming to source or replace parts for your SMT machine, please let me know:

• What brand and model of SMT machine (e.g., Yamaha, Juki, Panasonic, Samsung) you are working with?
• If you are looking for the physical vacuum rubber/metal tip that contacts the electronic components, or the pneumatic adapter sub-assembly?