Dk-Lok USA
Dk-Lok USA
161 West I-65 Service Road
Mobile, AL 36608
Phone: (251) 472-9580
Fax: (251) 450-0962 or (800) 287-8186
[email protected]
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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 to ISO tapered
GNH Series Hex Nipple Fittings
GNH Series Hex Nipple Fittings-2
Unit of Measure
1 2 3 

Item #

Material

P - Thread Size

P1 - Thread Size

L

E

H - Hex

CAD

GNH-4NR-L20 N/A Alloy 20 N/A 1/4 N/A 1/4-19 N/A 35.6 mm N/A 7.1 mm N/A 14.2 mm N/A CAD Icon (for items table)
GNH-6NR-L20 N/A Alloy 20 N/A 3/8 N/A 3/8-19 N/A 36.3 mm N/A 9.6 mm N/A 17.4 mm N/A CAD Icon (for items table)
GNH-8NR-L20 N/A Alloy 20 N/A 1/2 N/A 1/2-14 N/A 46.7 mm N/A 11.9 mm N/A 22.2 mm N/A CAD Icon (for items table)
GNH-12NR-L20 N/A Alloy 20 N/A 3/4 N/A 3/4-14 N/A 46.7 mm N/A 15.7 mm N/A 26.9 mm N/A CAD Icon (for items table)
GNH-16NR-L20 N/A Alloy 20 N/A 1 N/A 1-11 N/A 58.9 mm N/A 22.4 mm N/A 34.9 mm N/A CAD Icon (for items table)
GNH-2NR-HC N/A Hastelloy C276 N/A 1/8 N/A 1/8-28 N/A 24.6 mm N/A 4.8 mm N/A 11.1 mm N/A CAD Icon (for items table)
GNH-4NR-HC N/A Hastelloy C276 N/A 1/4 N/A 1/4-19 N/A 35.6 mm N/A 7.1 mm N/A 14.2 mm N/A CAD Icon (for items table)
GNH-6NR-HC N/A Hastelloy C276 N/A 3/8 N/A 3/8-19 N/A 36.3 mm N/A 9.6 mm N/A 17.4 mm N/A CAD Icon (for items table)
GNH-8NR-HC N/A Hastelloy C276 N/A 1/2 N/A 1/2-14 N/A 46.7 mm N/A 11.9 mm N/A 22.2 mm N/A CAD Icon (for items table)
GNH-12NR-HC N/A Hastelloy C276 N/A 3/4 N/A 3/4-14 N/A 46.7 mm N/A 15.7 mm N/A 26.9 mm N/A CAD Icon (for items table)
GNH-16NR-HC N/A Hastelloy C276 N/A 1 N/A 1-11 N/A 58.9 mm N/A 22.4 mm N/A 34.9 mm N/A CAD Icon (for items table)
GNH-2NR-M N/A Alloy 400 N/A 1/8 N/A 1/8-28 N/A 24.6 mm N/A 4.8 mm N/A 11.1 mm N/A CAD Icon (for items table)
GNH-4NR-M N/A Alloy 400 N/A 1/4 N/A 1/4-19 N/A 35.6 mm N/A 7.1 mm N/A 14.2 mm N/A CAD Icon (for items table)
GNH-6NR-M N/A Alloy 400 N/A 3/8 N/A 3/8-19 N/A 36.3 mm N/A 9.6 mm N/A 17.4 mm N/A CAD Icon (for items table)
GNH-8NR-M N/A Alloy 400 N/A 1/2 N/A 1/2-14 N/A 46.7 mm N/A 11.9 mm N/A 22.2 mm N/A CAD Icon (for items table)
GNH-12NR-M N/A Alloy 400 N/A 3/4 N/A 3/4-14 N/A 46.7 mm N/A 15.7 mm N/A 26.9 mm N/A CAD Icon (for items table)
GNH-16NR-M N/A Alloy 400 N/A 1 N/A 1-11 N/A 58.9 mm N/A 22.4 mm N/A 34.9 mm N/A CAD Icon (for items table)
GNH-2NR-IN N/A Alloy 600 N/A 1/8 N/A 1/8-28 N/A 24.6 mm N/A 4.8 mm N/A 11.1 mm N/A CAD Icon (for items table)
GNH-4NR-IN N/A Alloy 600 N/A 1/4 N/A 1/4-19 N/A 35.6 mm N/A 7.1 mm N/A 14.2 mm N/A CAD Icon (for items table)
GNH-6NR-IN N/A Alloy 600 N/A 3/8 N/A 3/8-19 N/A 36.3 mm N/A 9.6 mm N/A 17.4 mm N/A CAD Icon (for items table)
GNH-8NR-IN N/A Alloy 600 N/A 1/2 N/A 1/2-14 N/A 46.7 mm N/A 11.9 mm N/A 22.2 mm N/A CAD Icon (for items table)
GNH-12NR-IN N/A Alloy 600 N/A 3/4 N/A 3/4-14 N/A 46.7 mm N/A 15.7 mm N/A 26.9 mm N/A CAD Icon (for items table)
GNH-16NR-IN N/A Alloy 600 N/A 1 N/A 1-11 N/A 58.9 mm N/A 22.4 mm N/A 34.9 mm N/A CAD Icon (for items table)
GNH-2NR-L625 N/A Alloy 625 N/A 1/8 N/A 1/8-28 N/A 24.6 mm N/A 4.8 mm N/A 11.1 mm N/A CAD Icon (for items table)
GNH-4NR-L625 N/A Alloy 625 N/A 1/4 N/A 1/4-19 N/A 35.6 mm N/A 7.1 mm N/A 14.2 mm N/A CAD Icon (for items table)
Unit of Measure
1 2 3