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 6320-00-223-0498
NSN 6145-01-158-6794
NSN 5996-01-146-5765
NSN 5950-01-414-8706
NSN 7035-01-444-4240
NSN 5960-01-071-4308
NSN 6135-01-546-4588
NSN 5999-00-812-8214
NSN 6650-01-467-2355
NSN 5855-01-321-3881
NSN 5985-01-550-9731
NSN 5965-00-006-3104