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 6150-01-287-6370
NSN 6220-01-106-9867
NSN 6145-01-340-8686
NSN 5930-01-438-1333
NSN 5935-01-270-4011
NSN 5975-01-408-8319
NSN 5996-01-313-7112
NSN 5910-01-384-3808
NSN 6610-01-415-5775
NSN 5935-01-320-9408
NSN 5895-01-451-4341
NSN 5835-01-454-5267