Item is not csi but has critcal feature such as magnetic particle insp
A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Undercarriages and parts thereof, for use in military aircraft
NSN 5920-01-379-5657
NSN 6620-01-449-8743
NSN 5855-01-217-2353
NSN 4140-01-103-3377
NSN 6620-01-271-8984
NSN 6645-01-107-5350
NSN 6135-01-125-4867
NSN 7035-01-123-8723
NSN 5910-00-816-9909
NSN 4140-00-899-3086
NSN 2925-01-307-7429
NSN 5965-00-246-5612