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 4140-00-689-6551
NSN 6220-01-053-0681
NSN 6130-00-173-3987
NSN 5920-00-878-7178
NSN 6240-00-500-4404
NSN 6620-00-126-5072
NSN 5895-01-511-1430
NSN 6620-01-048-4145
NSN 4140-01-426-8428
NSN 5960-00-275-7497
NSN 6110-01-428-2937
NSN 6620-01-094-6549