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 5998-00-403-3834
NSN 5920-01-248-5973
NSN 5930-00-024-2405
NSN 5920-01-385-8648
NSN 6145-01-627-1611
NSN 6220-01-427-2333
NSN 7035-01-227-7492
NSN 5935-01-097-4675
NSN 5905-01-417-3141
NSN 5999-01-469-7167
NSN 5999-01-205-1968
NSN 2925-00-918-0859