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 4140-01-641-0837
NSN 5990-01-560-0896
NSN 5920-01-415-8807
NSN 6620-00-115-9050
NSN 4140-01-456-0847
NSN 5835-00-372-3736
NSN 5985-01-519-2335
NSN 6685-00-293-6620
NSN 2925-01-190-0510
NSN 5930-01-062-0610
NSN 5950-00-247-6612
NSN 5996-00-611-1263