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 5950-00-036-9071
NSN 5835-01-472-5239
NSN 5925-00-900-8710
NSN 5910-01-132-4387
NSN 6240-00-471-5399
NSN 6240-01-406-5345
NSN 5945-01-333-0310
NSN 5950-01-625-2357
NSN 6105-01-512-1831
NSN 7035-00-193-2269
NSN 5975-01-198-7899
NSN 5996-00-096-7653