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 7035-01-277-8959
NSN 5895-01-127-1236
NSN 6240-01-199-7653
NSN 7035-00-177-1557
NSN 5895-01-215-1059
NSN 6130-01-434-5612
NSN 5998-00-843-1125
NSN 6145-01-146-0954
NSN 6135-00-856-1343
NSN 5985-00-262-0823
NSN 5990-01-492-1114
NSN 5965-00-285-0745