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 6685-00-494-3153
NSN 6610-01-008-3436
NSN 5905-00-199-7502
NSN 6610-01-142-8958
NSN 6220-01-014-5351
NSN 5835-01-076-4091
NSN 6150-01-573-7299
NSN 6645-00-405-1077
NSN 5835-00-905-7165
NSN 6620-01-494-9858
NSN 5895-01-643-9601
NSN 4140-01-467-1386