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 6130-01-562-9314
NSN 5965-01-504-6139
NSN 5920-00-767-0596
NSN 6610-00-355-0450
NSN 5985-01-449-1356
NSN 7035-00-487-8761
NSN 6240-00-287-1988
NSN 6150-00-100-1302
NSN 4140-01-260-5435
NSN 5835-00-226-7825
NSN 5950-01-352-4460
NSN 6110-00-764-1587