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 6130-00-735-3993
NSN 5996-01-019-0664
NSN 5965-01-592-3051
NSN 5930-01-424-9589
NSN 5985-01-073-9614
NSN 5855-01-623-0645
NSN 5925-01-311-9924
NSN 6645-01-363-9790
NSN 5950-01-146-5548
NSN 5910-01-574-3732
NSN 5855-00-151-3853
NSN 5975-00-104-5399