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 5910-01-305-5189
NSN 5920-01-284-7306
NSN 6110-01-388-2389
NSN 5910-01-071-9977
NSN 6650-01-406-4451
NSN 5910-00-456-5446
NSN 5915-00-782-5026
NSN 5925-01-574-6134
NSN 6645-01-010-3746
NSN 6130-01-526-0965
NSN 5925-01-350-5553
NSN 6620-01-517-0014