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 5910-01-035-6157
NSN 7035-01-245-7973
NSN 6650-01-218-2028
NSN 6135-01-442-4581
NSN 6610-00-925-0935
NSN 5945-00-227-8581
NSN 5855-00-013-1244
NSN 5950-00-163-5071
NSN 6150-01-627-6581
NSN 5895-00-831-2714
NSN 5999-01-275-4926
NSN 6130-01-598-4304