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 5835-00-491-3834
NSN 5925-01-572-2187
NSN 6105-00-818-9695
NSN 6105-00-116-0066
NSN 6650-01-176-3257
NSN 6135-00-127-1683
NSN 6110-01-510-4595
NSN 5910-01-189-6336
NSN 6145-01-222-3172
NSN 5950-00-009-5564
NSN 7035-01-428-2336
NSN 5975-00-303-0339