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 5965-00-355-8895
NSN 5925-01-159-5236
NSN 6650-01-543-3349
NSN 6150-01-043-4521
NSN 6135-01-306-6549
NSN 5965-01-436-0390
NSN 6645-01-363-1395
NSN 6650-01-502-6761
NSN 5910-00-339-2198
NSN 6135-01-511-1975
NSN 6650-00-296-4670
NSN 5935-01-223-4923