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 6610-00-050-8873
NSN 5930-01-459-8381
NSN 6320-00-646-3311
NSN 7035-00-327-0458
NSN 5975-01-641-8703
NSN 4140-01-047-1161
NSN 5996-01-099-9801
NSN 5960-01-139-0293
NSN 6685-01-083-4993
NSN 5960-01-407-1350
NSN 7035-01-649-0424
NSN 6110-01-386-1536