A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5905-00-146-7043
NSN 7035-01-029-7221
NSN 5855-01-264-8599
NSN 5935-01-269-9112
NSN 5920-00-038-6892
NSN 5945-01-343-6899
NSN 5905-01-582-2628
NSN 5895-00-196-1916
NSN 6130-00-277-7321
NSN 6145-00-944-8304
NSN 5855-00-494-9581
NSN 5895-01-004-9861