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 6610-00-952-8832
NSN 6240-01-386-5952
NSN 5965-01-024-2154
NSN 6240-00-252-7695
NSN 5925-01-243-8343
NSN 6320-00-389-4756
NSN 6220-00-703-5200
NSN 6105-01-533-1541
NSN 6130-01-076-3524
NSN 5855-00-925-7887
NSN 6610-01-502-7820
NSN 5935-00-187-5971