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 5945-01-089-6679
NSN 6220-01-013-9498
NSN 6240-01-643-7333
NSN 6105-01-574-5913
NSN 5998-01-279-1102
NSN 5960-00-763-5390
NSN 5996-01-274-3508
NSN 6685-00-186-9190
NSN 5935-01-331-6374
NSN 5855-00-951-6483
NSN 5855-01-421-1440
NSN 5835-01-050-9509