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Green Instrument thread Fittings have been developed based on ASME B31.3 for instrumentation and process control in sizes 1/8" to 2". Green Thread and weld fittings have a wrench flat allowing standard Hex wrench assembly. This is one of the Green Pipe fitting benefits.

Male NPT both ends
GNH Series Hex Nipples
GNH Series Hex Nipples-2
Unit of Measure
1 2 3 

Item #

Material

P - Pipe Size

L

E

H - Hex

Bar Stock

CAD

GNH-16N-SD N/A Super Duplex N/A 1 N/A 58.92 mm N/A 22.3 mm N/A 34.9 mm N/A N/A CAD Icon (for items table)
GNH-2N-L20 N/A Alloy 20 N/A 1/8 N/A 25.65 mm N/A 4.8 mm N/A 11.1 mm N/A N/A CAD Icon (for items table)
GNH-4N-L20 N/A Alloy 20 N/A 1/4 N/A 35.56 mm N/A 7.1 mm N/A 14.2 mm N/A N/A CAD Icon (for items table)
GNH-6N-L20 N/A Alloy 20 N/A 3/8 N/A 36.32 mm N/A 9.6 mm N/A 17.4 mm N/A N/A CAD Icon (for items table)
GNH-8N-L20 N/A Alloy 20 N/A 1/2 N/A 46.73 mm N/A 11.9 mm N/A 22.2 mm N/A N/A CAD Icon (for items table)
GNH-12N-L20 N/A Alloy 20 N/A 3/4 N/A 46.73 mm N/A 15.7 mm N/A 26.9 mm N/A N/A CAD Icon (for items table)
GNH-16N-L20 N/A Alloy 20 N/A 1 N/A 58.92 mm N/A 22.3 mm N/A 34.9 mm N/A N/A CAD Icon (for items table)
GNH-2N-HC N/A Hastelloy C276 N/A 1/8 N/A 25.65 mm N/A 4.8 mm N/A 11.1 mm N/A N/A CAD Icon (for items table)
GNH-4N-HC N/A Hastelloy C276 N/A 1/4 N/A 35.56 mm N/A 7.1 mm N/A 14.2 mm N/A N/A CAD Icon (for items table)
GNH-6N-HC N/A Hastelloy C276 N/A 3/8 N/A 36.32 mm N/A 9.6 mm N/A 17.4 mm N/A N/A CAD Icon (for items table)
GNH-8N-HC N/A Hastelloy C276 N/A 1/2 N/A 46.73 mm N/A 11.9 mm N/A 22.2 mm N/A N/A CAD Icon (for items table)
GNH-12N-HC N/A Hastelloy C276 N/A 3/4 N/A 46.73 mm N/A 15.7 mm N/A 26.9 mm N/A N/A CAD Icon (for items table)
GNH-16N-HC N/A Hastelloy C276 N/A 1 N/A 58.92 mm N/A 22.3 mm N/A 34.9 mm N/A N/A CAD Icon (for items table)
GNH-2N-M N/A Alloy 400 N/A 1/8 N/A 25.65 mm N/A 4.8 mm N/A 11.1 mm N/A N/A CAD Icon (for items table)
GNH-4N-M N/A Alloy 400 N/A 1/4 N/A 35.56 mm N/A 7.1 mm N/A 14.2 mm N/A N/A CAD Icon (for items table)
GNH-6N-M N/A Alloy 400 N/A 3/8 N/A 36.32 mm N/A 9.6 mm N/A 17.4 mm N/A N/A CAD Icon (for items table)
GNH-8N-M N/A Alloy 400 N/A 1/2 N/A 46.73 mm N/A 11.9 mm N/A 22.2 mm N/A N/A CAD Icon (for items table)
GNH-16N-M N/A Alloy 400 N/A 1 N/A 58.92 mm N/A 22.3 mm N/A 34.9 mm N/A N/A CAD Icon (for items table)
GNH-2N-IN N/A Alloy 600 N/A 1/8 N/A 25.65 mm N/A 4.8 mm N/A 11.1 mm N/A N/A CAD Icon (for items table)
GNH-4N-IN N/A Alloy 600 N/A 1/4 N/A 35.56 mm N/A 7.1 mm N/A 14.2 mm N/A N/A CAD Icon (for items table)
GNH-6N-IN N/A Alloy 600 N/A 3/8 N/A 36.32 mm N/A 9.6 mm N/A 17.4 mm N/A N/A CAD Icon (for items table)
GNH-8N-IN N/A Alloy 600 N/A 1/2 N/A 46.73 mm N/A 11.9 mm N/A 22.2 mm N/A N/A CAD Icon (for items table)
GNH-12N-IN N/A Alloy 600 N/A 3/4 N/A 46.73 mm N/A 15.7 mm N/A 26.9 mm N/A N/A CAD Icon (for items table)
GNH-16N-IN N/A Alloy 600 N/A 1 N/A 58.92 mm N/A 22.3 mm N/A 34.9 mm N/A N/A CAD Icon (for items table)
GNH-2N-L625 N/A Alloy 625 N/A 1/8 N/A 25.65 mm N/A 4.8 mm N/A 11.1 mm N/A N/A CAD Icon (for items table)
Unit of Measure
1 2 3