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 5935-01-006-8345
NSN 5920-00-070-8712
NSN 6110-01-530-5782
NSN 5910-01-234-2334
NSN 5895-00-803-9829
NSN 6685-00-203-4485
NSN 5920-01-018-7259
NSN 5895-00-492-1431
NSN 6645-00-226-0657
NSN 6620-01-525-8648
NSN 6240-01-505-0030
NSN 5950-01-492-5919