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 5905-01-484-6466
NSN 6685-01-382-7956
NSN 6135-01-231-4809
NSN 5985-01-496-4697
NSN 2925-01-197-7864
NSN 7035-01-406-4146
NSN 5915-00-936-7572
NSN 5990-01-626-3840
NSN 5855-01-575-1268
NSN 6240-01-647-3790
NSN 5985-01-248-3677
NSN 6135-01-390-7364