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 5985-00-291-1140
NSN 6320-00-036-3688
NSN 6610-01-590-7222
NSN 5999-01-551-5363
NSN 6610-01-081-9237
NSN 5945-01-443-4022
NSN 7035-00-275-5604
NSN 5835-01-383-1313
NSN 6105-01-450-9402
NSN 6110-01-205-5291
NSN 5835-01-036-4951
NSN 5960-00-974-4003