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 6130-01-453-0630
NSN 6145-01-266-0854
NSN 5975-01-339-0101
NSN 5930-00-880-4790
NSN 6110-01-514-0271
NSN 6130-01-471-1765
NSN 5930-00-691-9023
NSN 6150-00-322-9564
NSN 6130-01-592-2961
NSN 6240-00-774-9302
NSN 6240-01-196-1688
NSN 5905-01-284-0461