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 6145-01-532-4764
NSN 5910-01-451-4905
NSN 6620-01-149-9192
NSN 5985-01-039-9326
NSN 2925-01-183-2897
NSN 5985-00-521-9051
NSN 6645-01-363-5944
NSN 5895-01-042-2114
NSN 6240-01-657-6037
NSN 5935-00-276-9399
NSN 5975-00-225-8722
NSN 5895-00-065-1960