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 6685-01-339-9279
NSN 6150-01-492-5811
NSN 5835-00-733-9145
NSN 5895-00-278-5194
NSN 2925-01-109-3684
NSN 5920-01-223-3734
NSN 5905-00-550-0937
NSN 6135-01-297-5565
NSN 6105-00-168-6556
NSN 5990-01-552-5386
NSN 6620-01-205-6608
NSN 6150-00-249-1760