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 5945-00-346-9488
NSN 5895-00-552-9920
NSN 6320-01-347-2638
NSN 5990-00-811-2103
NSN 5985-01-351-9084
NSN 5925-00-194-9146
NSN 5895-01-462-2214
NSN 5915-00-174-7079
NSN 6110-01-052-1881
NSN 6135-01-312-1040
NSN 5965-01-437-0905
NSN 6645-01-352-6583