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Parker Instrumentation Pipe Fittings are designed as leak-free connections for process, power, instrumentation and general industrial applications. They are manufactured to the highest quality standards and are available in broad ranges of sizes, materials and configurations.

Parker Instrumentation Pipe fittings are made at the Instrumentation Products Division of Parker Hannifin in Huntsville, Alabama. These fittings are manufactured where strict adherence to quality control programs is maintained.

NOTE:
Dimensions for reference only, subject to change.
Female Hex Coupling FHC
Unit of Measure
1 2 

Item #

Connection Type

NPT Thread Male T1

NPT Thread Male T2

W HEX

D

Working Pressure - Brass

Working Pressure - Stainless Steel

Working Pressure - Steel

1-1 FHC N/A FNPT to FNPT N/A 1/16 N/A 1/16 N/A 1/2 in N/A .75 in N/A 4500 psig N/A 7500 psig N/A 8000 psig
2-1 FHC N/A FNPT to FNPT N/A 1/8 N/A 1/16 N/A 5/8 in N/A .75 in N/A 4000 psig N/A 6400 psig N/A 6800 psig
2-2 FHC N/A FNPT to FNPT N/A 1/8 N/A 1/8 N/A 5/8 in N/A .75 in N/A 4000 psig N/A 6400 psig N/A 6800 psig
4-1 FHC N/A FNPT to FNPT N/A 1/4 N/A 1/16 N/A 3/4 in N/A .92 in N/A 4300 psig N/A 6600 psig N/A 7000 psig
4-2 FHC N/A FNPT to FNPT N/A 1/4 N/A 1/8 N/A 3/4 in N/A .94 in N/A 4300 psig N/A 6600 psig N/A 7000 psig
4-4 FHC N/A FNPT to FNPT N/A 1/4 N/A 1/4 N/A 3/4 in N/A 1.13 in N/A 4300 psig N/A 6600 psig N/A 7000 psig
6-1 FHC N/A FNPT to FNPT N/A 3/8 N/A 1/16 N/A 7/8 in N/A .95 in N/A 3500 psig N/A 5300 psig N/A 5600 psig
6-2 FHC N/A FNPT to FNPT N/A 3/8 N/A 1/8 N/A 7/8 in N/A 1.03 in N/A 3500 psig N/A 5300 psig N/A 5600 psig
6-4 FHC N/A FNPT to FNPT N/A 3/8 N/A 1/4 N/A 7/8 in N/A 1.13 in N/A 3500 psig N/A 5300 psig N/A 5600 psig
6-6 FHC N/A FNPT to FNPT N/A 3/8 N/A 3/8 N/A 7/8 in N/A 1.13 in N/A 3500 psig N/A 5300 psig N/A 5600 psig
8-2 FHC N/A FNPT to FNPT N/A 1/2 N/A 1/8 N/A 1 1/8 in N/A 1.22 in N/A 3600 psig N/A 5200 psig N/A 5500 psig
8-4 FHC N/A FNPT to FNPT N/A 1/2 N/A 1/4 N/A 1 1/8 in N/A 1.38 in N/A 3600 psig N/A 5200 psig N/A 5500 psig
8-6 FHC N/A FNPT to FNPT N/A 1/2 N/A 3/8 N/A 1 1/8 in N/A 1.50 in N/A 3600 psig N/A 5200 psig N/A 5500 psig
8-8 FHC N/A FNPT to FNPT N/A 1/2 N/A 1/2 N/A 1 1/8 in N/A 1.50 in N/A 3600 psig N/A 5200 psig N/A 5500 psig
12-2 FHC N/A FNPT to FNPT N/A 3/4 N/A 1/8 N/A 1 3/8 in N/A 1.39 in N/A 3000 psig N/A 4300 psig N/A 4600 psig
12-4 FHC N/A FNPT to FNPT N/A 3/4 N/A 1/4 N/A 1 3/8 in N/A 1.55 in N/A 3000 psig N/A 4300 psig N/A 4600 psig
12-6 FHC N/A FNPT to FNPT N/A 3/4 N/A 3/8 N/A 1 3/8 in N/A 1.69 in N/A 3000 psig N/A 4300 psig N/A 4600 psig
12-8 FHC N/A FNPT to FNPT N/A 3/4 N/A 1/2 N/A 1 3/8 in N/A 1.88 in N/A 3000 psig N/A 4300 psig N/A 4600 psig
12-12 FHC N/A FNPT to FNPT N/A 3/4 N/A 3/4 N/A 1 3/8 in N/A 1.53 in N/A 3000 psig N/A 4300 psig N/A 4600 psig
16-2 FHC N/A FNPT to FNPT N/A 1 N/A 1/8 N/A 1 5/8 in N/A 1.44 in N/A 3100 psig N/A 4500 psig N/A 4800 psig
16-4 FHC N/A FNPT to FNPT N/A 1 N/A 1/4 N/A 1 5/8 in N/A 1.63 in N/A 3100 psig N/A 4500 psig N/A 4800 psig
16-6 FHC N/A FNPT to FNPT N/A 1 N/A 3/8 N/A 1 5/8 in N/A 1.63 in N/A 3100 psig N/A 4500 psig N/A 4800 psig
16-8 FHC N/A FNPT to FNPT N/A 1 N/A 1/2 N/A 1 5/8 in N/A 1.77 in N/A 3100 psig N/A 4500 psig N/A 4800 psig
16-12 FHC N/A FNPT to FNPT N/A 1 N/A 3/4 N/A 1 5/8 in N/A 1.72 in N/A 3100 psig N/A 4500 psig N/A 4800 psig
16-16 FHC N/A FNPT to FNPT N/A 1 N/A 1 N/A 1 5/8 in N/A 1.89 in N/A 3100 psig N/A 4500 psig N/A 4800 psig
Unit of Measure
1 2