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 6620-00-278-7313
NSN 4140-01-031-8203
NSN 6130-00-078-3824
NSN 2925-00-383-3523
NSN 5925-01-380-9837
NSN 6610-01-318-1840
NSN 6610-01-627-0642
NSN 5925-00-027-8220
NSN 6110-00-899-0164
NSN 6135-01-066-6904
NSN 7035-01-633-9537
NSN 6105-01-415-0598