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 6620-00-280-2874
NSN 5985-00-493-1713
NSN 6610-01-611-5323
NSN 4140-01-129-8885
NSN 6130-01-490-6324
NSN 5920-00-574-7510
NSN 5950-01-630-5443
NSN 5930-00-170-3585
NSN 6110-01-289-8170
NSN 6645-01-136-1491
NSN 5985-01-213-3549
NSN 6650-00-250-5183