0.188 in. Orifice
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 7035-01-042-5308
NSN 5920-01-213-0379
NSN 5935-00-918-5238
NSN 6220-00-138-8886
NSN 6620-01-096-3723
NSN 5965-01-554-4929
NSN 2925-01-292-9248
NSN 5945-01-146-5464
NSN 2925-01-255-6394
NSN 6645-00-715-1531
NSN 6135-01-455-5088
NSN 6645-01-358-7137