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 materials other than copper, iron or steel
NSN 5990-00-652-6578
NSN 5990-01-066-5227
NSN 5905-00-376-1771
NSN 6220-01-388-0317
NSN 6220-01-358-7107
NSN 2925-00-194-7407
NSN 5935-01-441-9578
NSN 6150-01-206-4624
NSN 6110-00-170-6520
NSN 5930-01-623-9764
NSN 6685-01-517-2502
NSN 4140-01-548-2551