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 6220-00-164-5481
NSN 5990-00-660-8885
NSN 6220-01-279-1331
NSN 6220-01-113-6431
NSN 4140-01-201-4359
NSN 6105-01-617-9713
NSN 5998-01-287-2090
NSN 5855-00-797-8217
NSN 6685-01-532-4150
NSN 6110-00-635-9237
NSN 6130-01-431-9894
NSN 5985-01-510-2932