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 7035-01-239-7297
NSN 5855-01-428-9456
NSN 6650-00-233-0705
NSN 6650-01-526-1000
NSN 2925-00-881-3770
NSN 5915-00-800-5264
NSN 5910-01-153-9043
NSN 6610-01-035-1252
NSN 5920-01-157-9471
NSN 6220-00-248-5511
NSN 6620-00-583-2687
NSN 6145-01-524-0558