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 7035-01-256-8203
NSN 6110-01-557-8439
NSN 4140-01-431-9821
NSN 5925-01-461-3594
NSN 6320-01-540-4885
NSN 4140-01-424-8779
NSN 6650-00-170-5095
NSN 5985-01-634-0635
NSN 5910-00-597-5824
NSN 7035-00-500-7839
NSN 6240-01-222-8906
NSN 6610-00-764-4015