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 6645-01-103-8449
NSN 6240-01-249-9840
NSN 6145-00-947-2770
NSN 6135-00-057-2005
NSN 5910-00-631-7970
NSN 5975-00-900-4013
NSN 6145-00-809-2699
NSN 6645-01-021-5727
NSN 6610-01-608-0004
NSN 5835-01-101-3687
NSN 6110-00-891-8823
NSN 6145-00-785-4112