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 7035-00-295-0451
NSN 5905-01-328-5863
NSN 6150-01-127-9302
NSN 5905-01-047-8129
NSN 6150-01-289-6487
NSN 5950-01-344-9619
NSN 5945-00-783-1050
NSN 5895-01-316-6451
NSN 5990-00-827-0684
NSN 5910-00-439-5807
NSN 6220-01-323-5408
NSN 6220-00-071-9789