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 5920-01-459-8493
NSN 7035-01-580-5868
NSN 5935-01-618-0327
NSN 5975-00-856-1799
NSN 6685-00-003-8648
NSN 5915-00-670-4435
NSN 2925-00-188-5003
NSN 5895-01-505-4724
NSN 6130-00-787-3024
NSN 6145-00-437-8960
NSN 6650-00-056-1581
NSN 5935-01-444-3756