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 5930-00-100-0163
NSN 6150-01-026-0913
NSN 6220-01-318-8488
NSN 6685-01-531-4094
NSN 5960-01-632-6576
NSN 6645-01-310-7348
NSN 6320-01-513-9166
NSN 5990-01-531-5962
NSN 5915-01-100-1180
NSN 5910-01-501-8752
NSN 4140-01-321-3310
NSN 5999-01-444-8173