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 6110-00-257-1446
NSN 5999-01-283-3095
NSN 5855-00-494-9581
NSN 5910-01-080-0853
NSN 6650-00-877-6972
NSN 7035-00-861-7913
NSN 5910-01-294-5701
NSN 5985-00-872-8606
NSN 5925-01-176-8415
NSN 5905-01-601-0794
NSN 4140-01-286-3682
NSN 5999-00-913-4223