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 5925-01-267-1053
NSN 5935-00-904-0041
NSN 6150-01-357-7865
NSN 5990-01-446-9118
NSN 6650-01-293-5557
NSN 5910-01-481-3658
NSN 6105-00-226-0211
NSN 5895-01-648-5605
NSN 6135-01-054-2462
NSN 5998-01-386-4592
NSN 6240-01-209-6639
NSN 5990-01-377-8991