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 6650-01-531-0156
NSN 5910-01-032-3458
NSN 6110-00-941-1882
NSN 6105-01-218-6454
NSN 6145-01-071-0483
NSN 6110-01-120-2728
NSN 5945-00-935-6922
NSN 5895-00-717-8878
NSN 5935-01-251-5102
NSN 5895-01-599-7232
NSN 4140-01-048-5472
NSN 5910-01-164-8527