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 5965-00-539-7778
NSN 5925-00-265-9488
NSN 5895-01-634-0630
NSN 5895-01-115-6467
NSN 5996-00-361-9901
NSN 5990-01-229-3003
NSN 5999-01-145-5084
NSN 5925-01-220-6147
NSN 6105-01-128-4682
NSN 5996-01-377-0070
NSN 6620-01-559-1921
NSN 5950-01-431-9618