The Parker CPI / A-LOK Front Ferrule (FF) is a front ferrule for fractional tubes. It comes in 14 sizes from 1/16" to 2".
| Type | Front ferrule |
| Part Numbers | 1FF1 ~ 32FF32 |
| Material | 316 stainless steel (heat code traceable) is standard / Other materials: steel, brass, aluminum, nickel-copper, Hastelloy C, Alloy 600, titanium, 6Mo, Incoloy 625 and 825 |
| Material Codes | Material code added to the end of the part number after a hyphen: B brass / SS or 316 = 316 stainless steel / S steel / A aluminum / M Alloy 400 / HC Hastelloy C-276 / IN Alloy 600 / SS20 Carpenter 20 / 6MO 6Mo / 625 / 825 / T titanium |
| Sizes (inches): tube O.D. by Part Number | 1FF1: tube 1/16" / 2FF2: tube 1/8" / 3FF3: tube 3/16" / 4FF4: tube 1/4" / 5FF5: tube 5/16" / 6FF6: tube 3/8" / 8FF8: tube 1/2" / 10FF10: tube 5/8" / 12FF12: tube 3/4" / 14FF14: tube 7/8" / 16FF16: tube 1" / 20FF20: tube 1-1/4" / 24FF24: tube 1-1/2" / 32FF32: tube 2" |