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 5935-01-583-7265
NSN 6150-00-465-9437
NSN 6105-01-323-4695
NSN 6685-00-735-9111
NSN 5835-01-303-6563
NSN 6145-01-653-1410
NSN 6150-00-451-6244
NSN 5975-01-628-8232
NSN 5996-00-486-6423
NSN 2925-00-150-7334
NSN 5998-01-598-1851
NSN 5945-01-448-4220