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 5945-01-023-2095
NSN 5910-01-068-5418
NSN 5895-01-087-6335
NSN 6645-01-613-7389
NSN 7035-01-587-5913
NSN 6150-01-198-0236
NSN 6240-01-468-5576
NSN 5990-01-352-5255
NSN 5945-00-827-0872
NSN 5998-01-511-6132
NSN 5999-01-237-3844
NSN 5998-00-236-2028