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 5895-01-435-9248
NSN 6240-01-445-8673
NSN 5960-00-982-2464
NSN 5935-01-411-6300
NSN 6150-00-372-5979
NSN 6645-00-456-2923
NSN 6620-01-507-8444
NSN 6145-00-010-5135
NSN 5835-01-090-0328
NSN 6135-01-586-1969
NSN 6150-01-351-6477
NSN 6130-00-702-8865