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 5960-00-654-7300
NSN 6685-00-339-8822
NSN 6105-01-310-8468
NSN 5950-01-216-6515
NSN 5935-01-153-2465
NSN 6620-01-500-9847
NSN 6240-00-538-8907
NSN 5895-01-438-0321
NSN 6145-01-531-9577
NSN 5975-01-429-8205
NSN 5985-01-367-2842
NSN 7035-00-679-9027