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 2925-01-537-9182
NSN 5945-00-144-8073
NSN 5925-00-275-7599
NSN 5935-01-063-1902
NSN 5965-01-205-6249
NSN 6220-00-686-5328
NSN 6645-01-559-4934
NSN 5925-01-660-1935
NSN 5999-01-067-9311
NSN 5998-00-065-4807
NSN 5910-01-503-8366
NSN 5920-01-101-4354