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 5835-00-683-4612
NSN 6610-01-428-7779
NSN 5945-01-231-6562
NSN 6220-01-248-4452
NSN 5996-00-011-5651
NSN 6240-01-364-6022
NSN 5945-01-444-5099
NSN 6610-01-319-5039
NSN 6130-00-387-2051
NSN 5905-00-152-7307
NSN 6220-01-507-9614
NSN 5895-00-406-7671