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 6220-00-571-6855
NSN 6220-00-187-5519
NSN 6110-01-098-9864
NSN 6220-01-274-3545
NSN 5925-01-132-8569
NSN 5965-01-241-9865
NSN 6685-00-626-4296
NSN 6150-01-373-9864
NSN 5895-00-940-2549
NSN 5915-01-545-7642
NSN 5905-01-547-7211
NSN 5915-01-199-2614