Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1/2" NPT Female Description The Merit Brass hex locknut is a stainless steel 304 cast pipe fitting with female National Pipe Taper (NPT) threads locking two fittings into place for stability and reduced vibrations. The locknut has NPT threads for creating tighter seals than straight threads. The hexagonal shape provides increased leverage for use with a wrench during installation and disassembly. Made of stainless steel 304, the lower carbon content of this locknut ensures higher corrosion resistance than 302 grade steel. This fitting meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance.Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).Merit Brass manufactures pipe nipples following ISO 9001 standards for quality assurance. Family-owned since 1937, the company is based in Cleveland, OH. Merit Brass distributes pipe fittings to the United States and Canada. Features: Hex locknut locks two threaded fittings into place for stability and reduced vibrations Female National Pipe Taper (NPT) threads for use with male threaded pipes and fittings Made of stainless steel 304 for greater strength than 302 grade steel Low carbon content to ensure greater resistance to corrosion Meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance Product Details: Material: Stainless Steel Fastener Type: Lock, Hex Exterior Finish: Brass Metal Type: Stainless Steel, Alloy Steel, Brass Drive System: External Hex Is Discontinued By Manufacturer ‏ : ‎ No Package Dimensions ‏ : ‎ 1.5 x 1.2 x 0.6 inches; 0.8 Ounces Item model number ‏ : ‎ M419-08 Date First Available ‏ : ‎ April 13, 2010 Manufacturer ‏ : ‎ Merit Brass Best Sellers Rank: #251,452 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2,659 in Pipe Fittings (Industrial & Scientific) #2,659 in Pipe Fittings (Industrial & Scientific) Customer Reviews: 4.0 4.0 out of 5 stars 36 ratings