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 6320-01-220-2264
NSN 5920-00-773-1282
NSN 6645-00-825-2448
NSN 6685-00-878-3878
NSN 5945-01-537-0135
NSN 5895-01-437-6414
NSN 5975-00-079-9028
NSN 4140-00-544-6873
NSN 5920-01-361-8835
NSN 5965-01-458-2412
NSN 6145-01-560-5747
NSN 5935-01-530-1696