A gaseous mixture composed of argon and methane.
NSN 6145-00-110-4127
NSN 6240-01-450-9269
NSN 5855-00-327-2112
NSN 5905-01-460-5502
NSN 6645-01-463-3024
NSN 5950-01-384-3671
NSN 6105-00-683-5459
NSN 6150-01-016-6935
NSN 7035-01-651-7458
NSN 5930-01-616-2872
NSN 6240-00-063-0852
NSN 7035-00-104-7613