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 5950-01-055-6966
NSN 7035-01-603-4898
NSN 5945-01-460-0861
NSN 5910-01-398-8174
NSN 2925-01-480-8273
NSN 5905-01-329-2563
NSN 5935-01-540-9336
NSN 6610-01-649-5326
NSN 6220-01-367-9720
NSN 6685-00-141-4300
NSN 6645-01-274-0731
NSN 5930-01-108-6160