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 5855-01-492-6385
NSN 6110-00-148-8536
NSN 6145-01-289-6199
NSN 5935-01-172-1354
NSN 6135-01-384-7155
NSN 5990-01-476-9956
NSN 5910-01-352-1053
NSN 5920-00-900-5336
NSN 5950-01-135-1381
NSN 5985-01-331-3195
NSN 5855-01-308-0955
NSN 5950-00-056-0714