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 5999-00-679-9934
NSN 4140-01-631-4080
NSN 5960-00-866-5465
NSN 5950-01-113-9373
NSN 6685-00-353-5701
NSN 6620-01-216-0904
NSN 5950-01-634-0677
NSN 7035-00-938-8289
NSN 6145-01-465-5533
NSN 5855-01-138-4985
NSN 5965-00-153-5216
NSN 6240-00-156-1607