This is a multi use cylinder without a valve. This cylinder is use with various gases, air, oxygen, nitrogen, helium or helium/oxygen mixes
NSN 6685-00-296-0392
NSN 6650-01-063-6604
NSN 6650-01-168-1659
NSN 6620-00-203-9466
NSN 6130-00-240-4765
NSN 6240-00-660-8849
NSN 6145-01-104-6029
NSN 5975-01-121-9184
NSN 5950-01-314-3004
NSN 6105-01-264-5443
NSN 6130-01-069-2514
NSN 6240-01-628-9240