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 5998-00-113-1696
NSN 5905-00-023-2066
NSN 5975-01-634-0678
NSN 7035-01-456-4490
NSN 4140-01-186-8786
NSN 5985-00-803-0930
NSN 6685-01-592-4098
NSN 5915-01-411-9954
NSN 6130-01-237-8922
NSN 5920-01-417-1928
NSN 5835-01-026-0670
NSN 6685-01-229-7048