Flight critical item
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 6145-01-341-2712
NSN 6240-01-576-7618
NSN 5945-00-161-4014
NSN 5895-00-139-6016
NSN 6145-00-171-3152
NSN 5975-00-479-8050
NSN 5895-01-439-6997
NSN 5996-01-499-9172
NSN 6145-01-286-5673
NSN 6130-01-290-6474
NSN 5950-00-128-2258
NSN 6135-01-466-3980