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 5855-00-925-0114
NSN 6105-01-086-5287
NSN 6150-01-176-0221
NSN 5998-00-157-6975
NSN 6150-01-472-3117
NSN 5925-01-573-3331
NSN 6135-01-603-8367
NSN 6110-01-389-6916
NSN 5835-01-487-3042
NSN 5935-01-391-1261
NSN 5835-01-647-6426
NSN 5935-00-221-3720