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 6220-00-927-0543
NSN 6650-01-447-2858
NSN 4140-01-051-7583
NSN 5975-00-223-1837
NSN 5905-01-624-8149
NSN 6150-00-776-2738
NSN 5910-01-179-3755
NSN 6650-01-194-6997
NSN 2925-01-627-6568
NSN 4140-00-932-6074
NSN 6620-01-487-2509
NSN 6135-01-268-6726