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 5945-01-097-6641
NSN 5910-01-451-4292
NSN 6320-00-270-8222
NSN 6150-01-368-7524
NSN 5855-01-369-5037
NSN 5999-00-470-9575
NSN 5999-00-186-0058
NSN 5945-01-398-1831
NSN 5965-00-086-6874
NSN 6135-01-396-4900
NSN 5895-01-578-5532
NSN 5998-01-469-6517