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 6130-01-300-7869
NSN 6620-00-723-2075
NSN 5920-01-345-5433
NSN 6110-00-316-5450
NSN 7035-01-287-9817
NSN 6110-00-359-5571
NSN 2925-01-649-7543
NSN 6135-01-061-1862
NSN 6240-01-492-6529
NSN 5996-01-283-6729
NSN 6220-01-003-9126
NSN 6650-01-353-9299