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 7035-01-301-6325
NSN 6320-01-103-6218
NSN 6645-01-021-0356
NSN 6135-01-231-4809
NSN 5930-01-142-4242
NSN 6240-01-401-5340
NSN 5985-00-960-9086
NSN 6240-00-555-6347
NSN 2925-01-315-1714
NSN 6105-00-319-1432
NSN 6620-01-476-7355
NSN 6620-01-259-2411