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 6105-01-023-1611
NSN 5945-00-596-2665
NSN 6650-01-053-8726
NSN 5990-00-373-9787
NSN 5855-01-418-2962
NSN 6110-01-507-4293
NSN 5855-01-398-9548
NSN 5925-01-642-1526
NSN 6145-01-100-0732
NSN 6105-01-409-2023
NSN 4140-01-119-5980
NSN 5910-00-333-2927