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 5975-01-335-0172
NSN 5925-00-822-4353
NSN 5965-01-415-9196
NSN 6150-01-003-0706
NSN 6610-01-541-7422
NSN 5915-01-455-0760
NSN 5998-00-245-7948
NSN 6685-01-264-0093
NSN 5895-00-686-1670
NSN 5985-01-398-6523
NSN 5996-01-060-0239
NSN 5975-01-644-2830