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 5935-01-202-1012
NSN 5895-00-863-4146
NSN 5960-01-215-0992
NSN 5835-00-242-3763
NSN 5985-01-272-1072
NSN 5985-00-823-6302
NSN 2925-01-595-4345
NSN 6135-00-087-5300
NSN 5910-01-576-3178
NSN 5945-00-798-6188
NSN 5930-01-434-0290
NSN 5905-01-149-5721