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 6610-01-550-2032
NSN 6145-00-821-4418
NSN 5996-00-252-6722
NSN 6645-01-514-3353
NSN 5915-00-624-0168
NSN 5965-01-633-8849
NSN 5960-00-170-9614
NSN 5960-01-260-0770
NSN 6110-00-931-2085
NSN 5915-01-384-3858
NSN 5905-01-461-3144
NSN 5950-01-207-0028