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 5965-01-526-8967
NSN 6610-01-363-9745
NSN 5915-00-079-6415
NSN 6650-01-642-3866
NSN 5945-01-088-0711
NSN 6320-00-036-3688
NSN 6685-01-534-9719
NSN 5935-01-627-3420
NSN 5895-01-434-6100
NSN 5935-01-104-1526
NSN 5905-01-660-8030
NSN 2925-01-567-8027