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 5935-01-359-9331
NSN 6645-01-187-6997
NSN 5835-01-251-4945
NSN 6620-00-332-5550
NSN 5935-00-356-1664
NSN 6130-00-871-3690
NSN 6110-01-645-4807
NSN 5905-00-119-9114
NSN 6650-00-927-3391
NSN 6320-01-019-1028
NSN 6145-01-576-4743
NSN 6110-01-591-3036