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 5935-01-010-2729
NSN 6685-01-567-3176
NSN 5945-01-566-2822
NSN 5895-01-228-3445
NSN 6110-00-408-5697
NSN 6150-00-935-3317
NSN 5855-00-106-1640
NSN 6685-00-946-0318
NSN 6135-01-096-1452
NSN 6320-01-512-2031
NSN 5965-00-226-0209
NSN 6220-00-013-9523