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 5945-01-367-2754
NSN 6610-01-367-1640
NSN 5835-01-074-1161
NSN 5985-00-177-9285
NSN 5855-00-762-4833
NSN 5965-01-433-1974
NSN 6130-00-844-2792
NSN 5935-01-015-8808
NSN 5996-00-518-0460
NSN 5965-00-342-5126
NSN 6135-00-451-0709
NSN 6650-01-144-5351