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 5999-00-442-6551
NSN 7035-00-997-6212
NSN 6645-00-285-8781
NSN 6220-01-384-0571
NSN 5999-01-435-1896
NSN 5910-01-115-8841
NSN 6240-00-117-9957
NSN 5999-00-109-2044
NSN 5950-00-162-2528
NSN 5855-00-494-9581
NSN 6130-01-537-1261
NSN 4140-00-113-1279