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 5895-00-600-5662
NSN 6220-01-619-2650
NSN 6105-00-888-9977
NSN 5835-00-139-6407
NSN 5895-01-144-2629
NSN 5960-01-383-6262
NSN 5960-00-889-5470
NSN 5990-01-482-5950
NSN 5910-01-313-9784
NSN 5910-01-462-2440
NSN 6650-01-479-1297
NSN 5935-01-101-8163