Flight safety critical aircraft part
A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).
Classification: Articles of aluminum nesoi
NSN 5945-01-012-2992
NSN 5945-00-443-5828
NSN 6240-00-314-8042
NSN 6150-00-321-4415
NSN 6620-00-757-5299
NSN 5925-01-104-3924
NSN 5960-01-167-5879
NSN 5905-01-451-6512
NSN 5985-00-225-8621
NSN 6150-00-827-0081
NSN 2925-00-767-4245
NSN 6135-01-562-6582