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 6110-00-207-8862
NSN 6240-01-565-6276
NSN 5905-01-213-0387
NSN 5935-00-238-5166
NSN 5996-00-144-8091
NSN 4140-01-050-8096
NSN 5935-00-187-0006
NSN 5895-00-244-1838
NSN 6240-01-339-0069
NSN 5975-00-269-4365
NSN 4140-01-150-3241
NSN 5915-01-417-2058