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 5996-01-066-9003
NSN 6645-01-237-2568
NSN 5935-01-023-4029
NSN 6685-00-563-7475
NSN 5905-00-642-0173
NSN 5920-00-951-5050
NSN 5925-01-356-0445
NSN 5925-01-647-7873
NSN 6135-00-027-3914
NSN 5930-00-740-3693
NSN 6145-00-343-5967
NSN 5945-01-467-2242