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 6685-01-018-4439
NSN 5945-01-107-8801
NSN 5915-01-645-7880
NSN 6240-01-349-5225
NSN 5990-00-583-9577
NSN 5895-00-782-0844
NSN 5950-00-816-9913
NSN 6620-01-311-3516
NSN 6610-01-429-7267
NSN 7035-01-628-2111
NSN 6620-01-494-9858
NSN 5965-01-463-8176