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 6110-00-525-3418
NSN 5895-01-096-2977
NSN 6650-01-025-8803
NSN 6240-01-282-0983
NSN 6220-01-367-2923
NSN 5975-01-058-1581
NSN 5835-00-019-1816
NSN 5950-01-529-6542
NSN 6650-01-629-9480
NSN 5999-01-104-5694
NSN 5975-00-443-5625
NSN 5985-01-042-8202