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 5950-01-514-2881
NSN 5996-01-279-1089
NSN 5996-01-207-2724
NSN 6685-01-581-9733
NSN 6685-01-100-1071
NSN 5960-01-437-3313
NSN 6320-00-116-3658
NSN 6650-00-944-8925
NSN 5990-01-071-1505
NSN 5998-01-323-7112
NSN 5895-01-141-1805
NSN 6650-01-046-7795