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 6145-01-043-5992
NSN 7035-01-298-5154
NSN 5930-01-400-3037
NSN 5910-01-191-5874
NSN 5895-01-141-6031
NSN 6135-01-516-4638
NSN 5945-00-879-8306
NSN 5998-00-849-6648
NSN 6135-01-264-1311
NSN 5996-01-518-9265
NSN 6145-00-006-0812
NSN 5925-01-550-9653