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 5905-00-010-3012
NSN 6150-00-074-6031
NSN 5835-00-275-0584
NSN 6240-01-180-3720
NSN 7035-01-604-9813
NSN 7035-00-117-0418
NSN 6650-01-384-0529
NSN 6610-01-152-2821
NSN 6620-01-094-3925
NSN 5950-01-096-8878
NSN 5985-01-585-0497
NSN 6320-01-434-6861