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 5920-00-319-4652
NSN 6620-00-391-7858
NSN 5975-01-024-0678
NSN 6320-00-691-8514
NSN 5915-00-365-9951
NSN 6650-01-024-9554
NSN 6645-01-254-0490
NSN 5996-01-298-6012
NSN 5965-00-420-5653
NSN 5905-00-450-9240
NSN 5915-01-038-1759
NSN 5950-00-633-7655