Sole source required by statute
A item specifically designed to automatically/manually maintain outlet pressure in a divers helmet/breathing apparatus. It is designed for use with breathing gasses.
NSN 6685-00-410-4972
NSN 5895-01-108-0461
NSN 5920-01-243-8032
NSN 6320-00-845-3261
NSN 5935-00-188-8945
NSN 5935-01-358-3977
NSN 6220-00-728-4559
NSN 5998-01-179-5890
NSN 6110-01-244-4856
NSN 5935-00-296-4581
NSN 5990-00-269-2226
NSN 6240-00-480-7896