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 6110-01-268-2859
NSN 5965-00-508-3270
NSN 5950-01-084-7800
NSN 5855-00-962-5792
NSN 5905-01-165-3831
NSN 5945-00-614-7447
NSN 6620-01-569-4621
NSN 5905-00-256-0941
NSN 5945-00-781-1278
NSN 5965-01-633-8849
NSN 7035-01-629-0082
NSN 5905-01-325-3192