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 6110-01-169-0635
NSN 6150-00-599-0721
NSN 6610-01-539-9084
NSN 5965-01-510-9771
NSN 5999-01-602-5427
NSN 5895-01-576-8840
NSN 6220-00-129-0820
NSN 6645-01-412-6580
NSN 6620-01-631-0700
NSN 2925-01-063-7876
NSN 6610-00-766-7923
NSN 6135-01-031-8078