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 5950-01-323-8603
NSN 5910-01-296-8114
NSN 5855-01-472-2302
NSN 5950-01-051-5587
NSN 2925-01-612-0405
NSN 5990-00-925-3925
NSN 5905-01-519-1390
NSN 5965-01-231-5047
NSN 5985-00-007-2654
NSN 6105-01-396-1679
NSN 5835-01-485-0210
NSN 5835-00-341-5441