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 5915-01-576-9410
NSN 6610-01-122-0064
NSN 5925-01-069-2201
NSN 5935-01-398-1838
NSN 6645-01-641-1575
NSN 5975-01-142-3190
NSN 7035-01-420-3238
NSN 6685-01-176-8623
NSN 6240-00-963-5964
NSN 6220-00-654-7362
NSN 5905-00-449-3885
NSN 5835-00-372-3736