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 5999-01-037-0074
NSN 5998-00-171-2184
NSN 6220-00-958-5441
NSN 6135-01-010-0891
NSN 5965-01-508-0606
NSN 7035-01-266-3490
NSN 5895-01-165-2790
NSN 5990-01-416-1017
NSN 6610-01-033-2402
NSN 6220-00-515-6998
NSN 5895-01-216-5517
NSN 5945-01-398-0532