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 7035-01-083-0282
NSN 6610-01-040-4430
NSN 6610-01-371-4007
NSN 6240-01-245-6968
NSN 6685-01-546-0804
NSN 5910-01-630-6361
NSN 5990-01-231-1214
NSN 5835-01-370-8912
NSN 5910-01-243-0599
NSN 5945-01-476-2469
NSN 5895-01-065-2336
NSN 5965-01-160-7037