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 5920-00-203-5938
NSN 6105-01-634-0322
NSN 5895-01-176-6983
NSN 2925-01-085-0691
NSN 5985-01-314-7977
NSN 5930-01-364-9012
NSN 5990-00-864-9690
NSN 5835-01-408-7576
NSN 5925-00-812-6575
NSN 6240-01-161-1430
NSN 5905-01-058-2684
NSN 7035-01-237-8653