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 5855-01-508-6523
NSN 5925-01-483-5199
NSN 5920-00-912-9028
NSN 6220-01-129-4574
NSN 5855-00-361-0167
NSN 5960-01-245-0029
NSN 5905-00-026-0162
NSN 6145-01-396-8803
NSN 5985-01-495-0883
NSN 6650-00-119-5917
NSN 5975-00-937-0415
NSN 6240-01-049-4539