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 6220-00-480-7722
NSN 5960-01-512-0233
NSN 7035-01-555-7761
NSN 6610-01-160-6585
NSN 6130-00-581-9322
NSN 5925-01-245-1410
NSN 6320-01-202-8761
NSN 6150-01-526-0158
NSN 6650-00-098-6128
NSN 6645-00-117-9839
NSN 5990-00-281-4164
NSN 5835-01-125-6676