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 5910-00-184-8249
NSN 6130-01-473-1805
NSN 6110-00-341-5463
NSN 2925-01-412-9520
NSN 6135-01-517-6060
NSN 5996-01-463-7236
NSN 5905-00-535-9199
NSN 6130-01-634-0603
NSN 6620-00-391-7858
NSN 5960-01-543-0235
NSN 6110-01-624-5076
NSN 6650-00-051-1395