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 6240-01-477-1262
NSN 6620-01-348-1893
NSN 5998-01-088-6655
NSN 5965-01-048-4767
NSN 6685-00-930-9257
NSN 7035-01-167-2241
NSN 5999-00-821-6613
NSN 5999-01-259-5467
NSN 5925-00-578-0479
NSN 5985-01-242-9973
NSN 5905-01-095-3955
NSN 5835-01-200-7153