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 6105-00-058-1361
NSN 6620-00-389-8442
NSN 6645-01-416-0412
NSN 5905-01-482-2450
NSN 5835-01-277-9327
NSN 6130-01-306-2476
NSN 7035-00-320-5644
NSN 6240-01-381-5541
NSN 5960-01-416-2544
NSN 5855-00-256-5562
NSN 5905-01-449-8238
NSN 5930-01-625-5833