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 6645-01-252-8870
NSN 5910-01-340-4559
NSN 5920-01-003-8110
NSN 5895-01-561-6054
NSN 5999-00-079-8249
NSN 6645-01-627-6629
NSN 6610-01-333-6621
NSN 5965-00-170-5254
NSN 6620-00-613-3023
NSN 5920-00-276-8657
NSN 6685-01-371-3758
NSN 7035-00-549-2722