Cognizant service - united kingdom royal air force
NSN 5998-00-133-7939
NSN 6645-01-658-3187
NSN 5855-01-541-8659
NSN 2925-01-492-2421
NSN 5950-00-758-3059
NSN 6105-00-407-6244
NSN 5910-01-492-5843
NSN 7035-01-344-8708
NSN 6110-01-090-0804
NSN 6320-01-056-1164
NSN 5905-01-034-4273
NSN 5925-01-407-7300