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 6110-01-031-7185
NSN 7035-01-157-0028
NSN 5990-00-258-0228
NSN 5996-00-702-5664
NSN 6650-01-089-7777
NSN 2925-01-212-1040
NSN 5925-00-823-6138
NSN 6145-01-537-1269
NSN 6220-00-308-6330
NSN 5985-01-161-1975
NSN 5855-01-600-2997
NSN 5960-01-328-8248