Four thd bolt holes; 1/4-28 unf, class 3b thd size
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
Classification: Check valves of materials other than copper, iron or steel
NSN 5990-01-045-0268
NSN 5985-00-020-7033
NSN 5945-00-080-5299
NSN 5855-00-256-5562
NSN 5945-01-166-9998
NSN 5975-00-952-1791
NSN 6135-01-068-0119
NSN 6650-01-476-3329
NSN 5950-01-445-1105
NSN 6620-00-854-5024
NSN 5975-01-601-9296
NSN 5915-00-060-3294