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 5950-01-249-7185
NSN 6145-01-410-8322
NSN 5855-01-381-7493
NSN 5925-00-296-8123
NSN 5935-01-432-2107
NSN 5915-01-386-3614
NSN 5996-01-399-6366
NSN 5935-00-761-5039
NSN 5905-01-096-6933
NSN 6105-00-461-5962
NSN 6240-01-475-1824
NSN 5960-01-442-6234