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 6610-00-450-4875
NSN 5985-01-194-7925
NSN 6220-01-605-9375
NSN 5895-01-253-4259
NSN 5945-00-431-5277
NSN 6105-00-877-9287
NSN 5925-01-462-2209
NSN 5915-01-562-9609
NSN 6645-01-645-9117
NSN 5990-01-272-4091
NSN 5999-01-517-3693
NSN 5835-01-013-8797