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 5985-01-373-3223
NSN 6220-01-367-1877
NSN 4140-01-213-1941
NSN 6220-01-617-2666
NSN 5960-01-249-2602
NSN 2925-00-300-4103
NSN 6135-00-255-1340
NSN 5920-00-404-1078
NSN 5998-01-149-4146
NSN 7035-01-445-3563
NSN 5895-01-268-1467
NSN 6620-01-406-2755