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 6685-01-289-7275
NSN 5935-00-659-1846
NSN 5895-01-283-6744
NSN 6105-01-622-5642
NSN 5965-00-194-7213
NSN 6105-01-372-9157
NSN 5975-01-516-8350
NSN 6610-01-576-0007
NSN 5945-01-429-1252
NSN 5950-01-377-5879
NSN 5920-01-412-4113
NSN 5998-01-074-4420