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 5855-01-502-9403
NSN 7035-01-067-8991
NSN 5950-00-575-3547
NSN 5905-01-323-6711
NSN 5950-01-382-9337
NSN 2925-01-143-0092
NSN 6610-01-053-6781
NSN 5999-00-955-5704
NSN 5960-01-210-9762
NSN 6135-01-124-2376
NSN 5835-01-383-1313
NSN 5950-01-612-3012