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 7035-01-033-3007
NSN 6620-00-389-8442
NSN 5950-01-489-7054
NSN 5950-01-350-3251
NSN 6320-01-513-9166
NSN 6610-01-092-9846
NSN 5975-00-875-4082
NSN 5835-00-759-1109
NSN 5930-01-091-4818
NSN 7035-00-403-5340
NSN 5990-01-378-7349
NSN 5985-01-279-5320