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 6220-00-555-6356
NSN 6610-01-122-0064
NSN 6145-01-128-9083
NSN 6130-01-085-5546
NSN 6650-01-272-9746
NSN 6220-01-600-5971
NSN 6685-00-959-4089
NSN 6130-00-672-9222
NSN 5945-00-513-9716
NSN 5920-00-723-4554
NSN 6145-01-408-8564
NSN 6135-01-077-3787