The Parker CPI / A-LOK NPT Male Connector (FBZ / MSC) connects a fractional tube to an NPT male thread. It comes in 46 size combinations with tube outer diameters from 1/16" to 2". CPI uses a single ferrule and A-LOK a double ferrule.
| Type | NPT male connector: connects a fractional tube to an NPT male thread |
| Part Numbers | CPI 1-1 FBZ, A-LOK 1MSC1N ~ CPI 32-32 FBZ, A-LOK 32MSC32N / Example: CPI 8-4FBZ-SS, A-LOK 8MSC4N-316 |
| Thread | NPT |
| Size Numbers | Size numbers in the part number are in sixteenths of an inch (for example 1/2" tube = 8, 1/4" thread = 4) |
| Connection Method | CPI: single ferrule / A-LOK: double ferrule |
| 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 |
| Note | Sizes 20, 24 and 32 require additional lubrication prior to assembly |
| Sizes (inches): Tube O.D. and NPT Thread Size by CPI Part Number (A-LOK Part Number) | 1-1 FBZ (1MSC1N): tube 1/16" x NPT 1/16" / 1-2 FBZ (1MSC2N): tube 1/16" x NPT 1/8" / 1-4 FBZ (1MSC4N): tube 1/16" x NPT 1/4" / 2-1 FBZ (2MSC1N): tube 1/8" x NPT 1/16" / 2-2 FBZ (2MSC2N): tube 1/8" x NPT 1/8" / 2-4 FBZ (2MSC4N): tube 1/8" x NPT 1/4" / 2-6 FBZ (2MSC6N): tube 1/8" x NPT 3/8" / 2-8 FBZ (2MSC8N): tube 1/8" x NPT 1/2" / 3-1 FBZ (3MSC1N): tube 3/16" x NPT 1/16" / 3-2 FBZ (3MSC2N): tube 3/16" x NPT 1/8" / 3-4 FBZ (3MSC4N): tube 3/16" x NPT 1/4" / 4-1 FBZ (4MSC1N): tube 1/4" x NPT 1/16" / 4-2 FBZ (4MSC2N): tube 1/4" x NPT 1/8" / 4-4 FBZ (4MSC4N): tube 1/4" x NPT 1/4" / 4-6 FBZ (4MSC6N): tube 1/4" x NPT 3/8" / 4-8 FBZ (4MSC8N): tube 1/4" x NPT 1/2" / 4-12 FBZ (4MSC12N): tube 1/4" x NPT 3/4" / 5-2 FBZ (5MSC2N): tube 5/16" x NPT 1/8" / 5-4 FBZ (5MSC4N): tube 5/16" x NPT 1/4" / 5-6 FBZ (5MSC6N): tube 5/16" x NPT 3/8" / 5-8 FBZ (5MSC8N): tube 5/16" x NPT 1/2" / 6-2 FBZ (6MSC2N): tube 3/8" x NPT 1/8" / 6-4 FBZ (6MSC4N): tube 3/8" x NPT 1/4" / 6-6 FBZ (6MSC6N): tube 3/8" x NPT 3/8" / 6-8 FBZ (6MSC8N): tube 3/8" x NPT 1/2" / 6-12 FBZ (6MSC12N): tube 3/8" x NPT 3/4" / 8-2 FBZ (8MSC2N): tube 1/2" x NPT 1/8" / 8-4 FBZ (8MSC4N): tube 1/2" x NPT 1/4" / 8-6 FBZ (8MSC6N): tube 1/2" x NPT 3/8" / 8-8 FBZ (8MSC8N): tube 1/2" x NPT 1/2" / 8-12 FBZ (8MSC12N): tube 1/2" x NPT 3/4" / 8-16 FBZ (8MSC16N): tube 1/2" x NPT 1" / 10-6 FBZ (10MSC6N): tube 5/8" x NPT 3/8" / 10-8 FBZ (10MSC8N): tube 5/8" x NPT 1/2" / 10-12 FBZ (10MSC12N): tube 5/8" x NPT 3/4" / 12-8 FBZ (12MSC8N): tube 3/4" x NPT 1/2" / 12-12 FBZ (12MSC12N): tube 3/4" x NPT 3/4" / 12-16 FBZ (12MSC16N): tube 3/4" x NPT 1" / 14-12 FBZ (14MSC12N): tube 7/8" x NPT 3/4" / 14-16 FBZ (14MSC16N): tube 7/8" x NPT 1" / 16-8 FBZ (16MSC8N): tube 1" x NPT 1/2" / 16-12 FBZ (16MSC12N): tube 1" x NPT 3/4" / 16-16 FBZ (16MSC16N): tube 1" x NPT 1" / 20-20 FBZ (20MSC20N): tube 1-1/4" x NPT 1-1/4" / 24-24 FBZ (24MSC24N): tube 1-1/2" x NPT 1-1/2" / 32-32 FBZ (32MSC32N): tube 2" x NPT 2" |