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 5990-00-081-3357
NSN 6610-01-331-6966
NSN 6150-00-356-0530
NSN 5950-01-398-8161
NSN 6610-01-297-1492
NSN 2925-01-480-8273
NSN 5998-01-381-3136
NSN 6610-01-431-6867
NSN 5935-00-513-7321
NSN 6110-00-456-9506
NSN 6135-00-826-4798
NSN 5905-00-226-0528