60 degrees countersink located on flange end inside dia
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: Other articles of iron or steel not wire nesoi
NSN 6135-01-544-8463
NSN 5835-00-102-2373
NSN 6110-01-030-1264
NSN 5910-01-502-6614
NSN 5998-00-458-4408
NSN 6240-00-126-4551
NSN 5945-01-567-5919
NSN 6105-01-350-9211
NSN 5960-01-398-4883
NSN 5990-01-011-0683
NSN 5950-01-025-5826
NSN 5835-00-233-6327