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.
NSN 6685-01-188-7379
NSN 5920-01-187-3720
NSN 6650-01-607-1283
NSN 5998-01-281-8687
NSN 6685-00-821-7533
NSN 6645-01-562-1351
NSN 4140-01-444-2083
NSN 5985-01-041-0194
NSN 5855-01-258-5161
NSN 6145-01-607-4778
NSN 5910-01-415-3108
NSN 5996-01-310-5458