Cage 00dr5, type f, states they are oem
No other part numbers with same form, fit, and function found.
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 6130-01-605-1588
NSN 6645-01-609-4753
NSN 5855-01-389-8884
NSN 5930-01-081-6936
NSN 6650-00-094-9410
NSN 6110-00-160-1374
NSN 5990-00-573-6067
NSN 5935-00-111-2417
NSN 7035-01-086-2922
NSN 6105-01-222-5262
NSN 5935-00-735-1051
NSN 5945-01-587-1072