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 5915-01-393-2708
NSN 6105-00-289-9993
NSN 6130-01-571-7932
NSN 5990-01-110-8979
NSN 5950-01-513-8236
NSN 6130-01-022-3716
NSN 6150-01-311-6922
NSN 6650-01-505-0661
NSN 5855-01-406-7237
NSN 5960-00-477-1203
NSN 5910-00-892-3187
NSN 6135-01-142-2417