Tube Nut Application Air Natural Gas Non-Potable Water Potable Water Steam Fitting Material Stainless Steel Material Grade 316 Maximum Operating Temperature 1 200 Degrees F Overall Length 11/16 in Thread Size 7/8-20 Specific Fitting Shape Nut/Sleeve System of Measurement Imperial Compatible Tube Outer Diameter 5/8 in Compatible Fitting Brands Swagelok Series CPI(TM) Standards ASME SA-479 ASTM A276 Type 316 BS970 316-S31 DIN 4401 Compatible Tube Material Stainless Steel