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 5945-01-633-6970
NSN 5835-01-283-9691
NSN 5855-01-616-6544
NSN 5950-01-023-2587
NSN 5985-00-968-0691
NSN 5996-01-321-1927
NSN 6135-00-120-1027
NSN 6620-01-023-2938
NSN 6145-00-828-9024
NSN 5910-00-973-5924
NSN 7035-01-587-9360
NSN 2925-01-424-0235