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 5920-00-942-2674
NSN 5910-01-503-2570
NSN 5990-01-336-3976
NSN 5990-01-517-1909
NSN 5945-01-242-9989
NSN 7035-00-200-5162
NSN 5999-01-499-4348
NSN 6220-00-216-9504
NSN 6240-01-111-5623
NSN 6130-01-050-1838
NSN 5905-01-389-7494
NSN 5950-01-345-4185