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 6110-01-150-2672
NSN 5855-01-589-7273
NSN 5999-01-310-7715
NSN 5905-01-127-0973
NSN 6620-01-103-7508
NSN 2925-01-528-7333
NSN 5910-01-137-0152
NSN 5910-01-152-2906
NSN 5985-00-731-1856
NSN 5990-01-243-4233
NSN 6135-01-549-5587
NSN 5895-00-507-3498