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 5996-01-023-3317
NSN 6650-01-258-8403
NSN 6620-01-253-0374
NSN 6135-01-422-1440
NSN 5855-01-083-9053
NSN 6220-01-623-5919
NSN 6150-01-287-6924
NSN 2925-01-129-1261
NSN 6685-01-258-7039
NSN 5960-00-119-4476
NSN 2925-01-543-5571
NSN 5835-01-234-7039