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 6145-00-738-5601
NSN 5915-01-200-7449
NSN 6135-01-582-5987
NSN 5998-00-218-1360
NSN 5950-00-399-1037
NSN 6150-01-202-7966
NSN 5895-01-417-7101
NSN 5895-01-012-2202
NSN 2925-01-495-1178
NSN 6610-01-458-9165
NSN 6135-01-495-0933
NSN 5895-01-195-4844