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 5915-00-222-6031
NSN 5930-00-119-1913
NSN 5985-00-067-7251
NSN 2925-01-497-9381
NSN 5945-01-312-1087
NSN 5975-01-414-8538
NSN 6685-01-223-2199
NSN 6240-01-258-5829
NSN 5855-00-179-8588
NSN 6110-01-322-6428
NSN 6145-01-501-6174
NSN 5950-01-225-6773