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 6650-00-515-6002
NSN 5935-01-319-2500
NSN 7035-00-470-4977
NSN 7035-00-585-2113
NSN 2925-01-252-8049
NSN 5905-01-485-3632
NSN 5920-01-023-0040
NSN 6320-01-313-8306
NSN 5935-00-623-8256
NSN 6220-01-160-1738
NSN 6650-01-243-3308
NSN 6240-00-434-3771