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 5975-01-091-2045
NSN 5985-01-410-3435
NSN 7035-01-633-9537
NSN 5855-01-444-5248
NSN 5975-01-205-3769
NSN 5945-01-531-6463
NSN 6650-00-551-7708
NSN 6150-00-681-8380
NSN 5960-01-169-1372
NSN 5950-01-571-6618
NSN 6610-01-167-1771
NSN 5998-01-370-5926