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 5895-01-347-1016
NSN 5950-00-867-0065
NSN 6645-01-464-4937
NSN 6220-01-238-4110
NSN 6135-01-159-9705
NSN 6610-01-472-9040
NSN 6110-00-156-9823
NSN 5998-00-918-2274
NSN 5998-00-836-4255
NSN 5960-01-181-2143
NSN 6240-01-138-4888
NSN 5990-01-531-4812