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 5925-00-155-8463
NSN 5935-01-123-3467
NSN 6650-00-775-6560
NSN 5975-00-082-0894
NSN 6650-01-472-0143
NSN 2925-00-596-9775
NSN 5975-01-128-1570
NSN 5965-01-056-7225
NSN 5915-01-331-4155
NSN 5925-01-512-9934
NSN 7035-01-158-7673
NSN 5990-00-185-9586