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 6135-01-535-2307
NSN 5920-00-585-0104
NSN 5960-01-303-5884
NSN 5895-01-396-7426
NSN 5960-01-248-2364
NSN 5920-01-430-5001
NSN 5855-01-494-3713
NSN 6110-01-286-9109
NSN 6110-01-311-6573
NSN 6650-00-327-5846
NSN 6650-01-027-1181
NSN 5945-01-377-9927