A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Classification: Check valves of steel
NSN 5996-01-033-4061
NSN 5985-01-212-2950
NSN 5930-01-147-5229
NSN 7035-00-465-3298
NSN 5935-01-351-8844
NSN 6135-01-048-0910
NSN 5999-00-049-3986
NSN 5999-00-141-7682
NSN 5960-00-567-2380
NSN 7035-01-150-6303
NSN 5985-01-237-8831
NSN 4140-01-431-9065