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 5855-01-471-2149
NSN 6150-01-531-7238
NSN 5905-01-348-8919
NSN 5999-01-493-3185
NSN 6650-01-528-8701
NSN 6135-01-265-1384
NSN 5996-01-095-3598
NSN 5925-01-083-3042
NSN 5905-01-522-8128
NSN 7035-01-158-8860
NSN 6110-00-913-2574
NSN 5855-01-486-7538