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 6145-01-643-5873
NSN 6610-01-224-7247
NSN 6145-00-185-4515
NSN 6610-01-125-9899
NSN 5990-01-617-5156
NSN 6220-01-503-5420
NSN 7035-00-312-3055
NSN 5910-01-271-1715
NSN 5985-00-508-7162
NSN 6610-01-073-4829
NSN 5835-00-864-4481
NSN 5925-00-851-0011