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 5985-01-222-0940
NSN 5985-01-032-2488
NSN 5895-01-288-5979
NSN 5915-00-495-7327
NSN 5950-00-951-9378
NSN 6105-01-437-6431
NSN 6105-00-020-3591
NSN 6620-00-273-8735
NSN 6110-01-231-5487
NSN 6110-00-180-4601
NSN 4140-01-381-7286
NSN 6145-00-964-7466