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 5950-00-202-5861
NSN 5855-01-411-0189
NSN 6135-01-202-8113
NSN 5945-01-022-4463
NSN 6150-00-361-2423
NSN 5996-01-466-2825
NSN 6685-01-462-0003
NSN 6685-01-361-5998
NSN 6610-00-376-7689
NSN 5915-01-641-2961
NSN 5935-00-945-3432
NSN 5905-01-471-8380