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 5930-01-325-5092
NSN 5960-01-399-4327
NSN 7035-01-127-9019
NSN 5895-00-472-3985
NSN 5965-01-421-1244
NSN 6620-01-413-9243
NSN 6110-00-613-1430
NSN 5930-00-499-3860
NSN 6145-00-798-4831
NSN 5930-01-543-0078
NSN 5930-01-447-2698
NSN 5945-00-293-8333