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 2925-00-660-8131
NSN 5998-00-547-8495
NSN 6150-00-900-8620
NSN 5910-01-301-1592
NSN 6135-01-056-4609
NSN 6220-00-736-8791
NSN 5998-00-292-9515
NSN 5835-01-406-5943
NSN 6650-01-441-1258
NSN 6240-01-398-0646
NSN 6610-00-795-2711
NSN 5915-00-798-9141