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 7035-01-179-5667
NSN 6650-01-085-2388
NSN 6110-01-300-7541
NSN 5910-01-299-8918
NSN 6150-00-137-0190
NSN 6240-01-459-3354
NSN 5975-00-356-4946
NSN 5920-01-477-9261
NSN 5855-01-607-6521
NSN 5935-00-584-4584
NSN 6685-00-273-1618
NSN 6110-00-284-1161