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 7035-00-541-8516
NSN 5925-01-110-1918
NSN 5960-00-916-3859
NSN 6645-00-880-8045
NSN 5945-01-273-9790
NSN 5999-01-530-1796
NSN 6110-00-080-8867
NSN 5910-00-003-7702
NSN 5905-01-634-0595
NSN 5975-01-459-8991
NSN 5965-01-220-0529
NSN 5925-01-087-5838