Ultra-miniature 303 stainless steel compression fitting, MCB-32, is designed for use with 1/32" OD metal or stiff plastic tubing. Features a two-piece ferrule, 10-32 UNF thread, and Beswick's captured O-ring face seal. Withstands up to 3,000 psig with high pressure metal tubing.  When using stiff plastic tubing, the burst pressure of the tube is typically the limited factor.