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 5905-01-581-2840
NSN 5985-00-225-6625
NSN 6110-00-596-5011
NSN 5945-01-568-5649
NSN 5960-00-973-0700
NSN 7035-00-973-9215
NSN 5935-01-414-2035
NSN 6150-00-421-0390
NSN 5960-01-100-5065
NSN 6110-01-447-2770
NSN 5960-01-008-5670
NSN 5855-01-389-3091