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 7035-00-500-7839
NSN 6645-01-129-8211
NSN 5950-01-221-2639
NSN 5905-00-391-6398
NSN 6105-00-891-9768
NSN 5895-00-263-3982
NSN 5950-00-114-1510
NSN 6620-00-863-4639
NSN 7035-00-679-9027
NSN 5990-00-951-3124
NSN 5910-01-152-2051
NSN 5990-00-802-3060