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 5905-01-279-5376
NSN 6150-00-224-3951
NSN 5835-01-580-0446
NSN 7035-00-275-5604
NSN 6145-01-391-9705
NSN 5910-00-596-3179
NSN 5990-00-924-0642
NSN 5985-01-359-6021
NSN 5835-01-043-1576
NSN 5935-00-492-1989
NSN 7035-01-088-6415
NSN 5996-01-424-4231