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 5925-01-324-6032
NSN 6220-01-261-4888
NSN 6150-01-418-1638
NSN 5915-01-585-4204
NSN 6150-00-650-1840
NSN 5905-01-019-9514
NSN 5975-01-095-7946
NSN 5895-01-212-5424
NSN 5935-00-515-3675
NSN 6110-01-263-8787
NSN 5990-01-485-0260
NSN 7035-00-978-7837