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 4140-01-506-5896
NSN 5905-01-130-0569
NSN 5996-01-525-7628
NSN 5998-01-108-8302
NSN 6150-00-482-4206
NSN 6320-01-488-5581
NSN 5925-01-113-7264
NSN 6645-01-133-4292
NSN 5895-01-048-2005
NSN 5935-01-272-8687
NSN 6320-01-261-5983
NSN 6620-01-535-0070