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 5950-01-044-6175
NSN 5990-01-217-1550
NSN 6130-01-415-6051
NSN 6220-00-352-8548
NSN 6130-01-464-3341
NSN 5950-00-526-0658
NSN 5925-00-468-2757
NSN 6220-00-846-3586
NSN 6110-01-158-7460
NSN 5945-01-072-7114
NSN 5910-00-958-0414
NSN 6150-01-168-7334