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 5915-01-505-0707
NSN 6610-01-021-5068
NSN 5945-00-219-6129
NSN 6130-00-115-5858
NSN 6130-00-470-7825
NSN 5985-01-323-7029
NSN 5855-01-098-9038
NSN 6130-01-605-1266
NSN 5835-00-148-9719
NSN 4140-01-463-2910
NSN 5965-01-408-4190
NSN 5985-00-152-2693