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 7035-01-595-5270
NSN 5835-00-113-6090
NSN 5999-01-622-4991
NSN 5965-01-250-0446
NSN 5945-01-479-1235
NSN 6320-00-925-0558
NSN 6110-01-129-6474
NSN 6150-01-049-2354
NSN 6610-01-289-9650
NSN 5910-01-344-0932
NSN 5920-00-767-0596
NSN 5996-01-289-9347