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 6650-00-775-6560
NSN 5905-01-202-8489
NSN 6110-00-155-4303
NSN 6650-01-393-2929
NSN 5935-01-068-2580
NSN 6240-01-031-4542
NSN 5935-00-513-9606
NSN 6220-01-055-4538
NSN 6145-01-200-7075
NSN 6150-00-753-3950
NSN 5935-01-009-2263
NSN 5920-00-557-9859