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 6135-01-226-4071
NSN 6645-00-103-1269
NSN 5855-01-587-4938
NSN 5999-01-472-8635
NSN 5998-00-161-2810
NSN 6240-00-936-2056
NSN 5855-00-933-8286
NSN 5895-01-368-1334
NSN 5905-00-035-8981
NSN 5910-01-029-8022
NSN 5925-01-401-5314
NSN 5950-00-118-2666