Flight critical item
A rigid metallic item, generally circular. It may be formed of segmented arcs. It is designed to prevent leakage of air in an engine, gas turbine, aircraft. It may be of various cross-sectional shapes. It may have mounting facilities. It may act as a spacer but its primary function is as an air seal.
Classification: Parts of gas turbine aircraft engines, other than for use in civil aircraft
NSN 5935-00-087-5146
NSN 5910-01-080-2204
NSN 5998-01-554-0523
NSN 2925-01-333-6346
NSN 6220-01-354-5557
NSN 6620-00-535-0547
NSN 5998-00-616-4409
NSN 6110-01-227-8597
NSN 5999-01-573-2966
NSN 6130-00-955-1743
NSN 5985-00-865-7003
NSN 5910-01-185-1676