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 2925-01-493-8045
NSN 6240-01-177-9361
NSN 5965-00-360-9534
NSN 4140-01-034-9022
NSN 6110-00-904-3328
NSN 6110-01-134-1685
NSN 5855-00-477-9943
NSN 6130-01-416-5685
NSN 6105-01-376-2214
NSN 5895-00-202-1026
NSN 6650-01-408-5089
NSN 6320-01-054-3046