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 6130-01-281-7268
NSN 5925-01-502-6475
NSN 6645-01-319-0006
NSN 5990-01-433-1471
NSN 5895-01-312-2085
NSN 6130-01-618-0033
NSN 6320-00-857-4073
NSN 6145-00-068-5540
NSN 5996-00-959-6511
NSN 5835-01-182-1966
NSN 6620-00-904-2139
NSN 2925-00-242-1425