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 5910-00-080-5845
NSN 6220-01-023-8818
NSN 5935-00-102-3868
NSN 6135-01-511-1975
NSN 5999-01-098-7403
NSN 6610-00-170-6715
NSN 5965-01-012-1065
NSN 5895-01-567-0768
NSN 7035-00-679-9027
NSN 5975-01-361-9141
NSN 5999-00-584-4577
NSN 5950-01-124-5516