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 6650-01-467-8818
NSN 5835-01-623-3328
NSN 6145-00-140-8226
NSN 5945-01-218-7863
NSN 5990-00-519-6278
NSN 6645-01-254-7980
NSN 4140-01-620-4816
NSN 5996-00-366-0233
NSN 6135-00-299-6918
NSN 6610-00-004-0332
NSN 2925-01-103-4499
NSN 5975-01-090-1062