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 5985-00-754-0658
NSN 6645-01-187-3704
NSN 5905-01-355-2411
NSN 5925-01-286-1551
NSN 7035-01-579-3587
NSN 6645-00-269-8440
NSN 5935-01-078-3601
NSN 6610-01-169-6134
NSN 6610-00-141-0393
NSN 5945-01-227-2148
NSN 5960-01-433-7565
NSN 6110-00-927-8186