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 5985-00-903-5444
NSN 6320-00-925-0558
NSN 6110-00-468-4406
NSN 6620-01-128-9808
NSN 5960-01-271-0928
NSN 6650-01-024-9554
NSN 7035-00-329-4015
NSN 6110-01-412-4345
NSN 5895-01-519-3363
NSN 6110-01-475-7651
NSN 6150-00-721-3945
NSN 5930-00-388-0161