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 7035-01-350-4247
NSN 6610-01-592-4150
NSN 5915-01-391-7830
NSN 5999-01-578-1016
NSN 5905-00-084-3493
NSN 6610-01-328-8098
NSN 6650-01-129-8343
NSN 6105-00-949-8629
NSN 5935-00-939-5474
NSN 6110-01-364-7168
NSN 6130-01-287-9840
NSN 5835-00-733-9145