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 5895-01-659-2113
NSN 5945-00-089-3176
NSN 5910-00-410-9365
NSN 6240-01-425-3289
NSN 5910-01-505-7235
NSN 5975-01-366-7999
NSN 5920-00-149-1469
NSN 7035-01-029-7221
NSN 6685-00-654-9912
NSN 6610-00-191-5317
NSN 6650-01-529-4601
NSN 6105-01-033-2443