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 5975-01-661-1522
NSN 6130-01-531-7865
NSN 6685-01-327-4110
NSN 5895-01-386-6484
NSN 7035-01-021-6654
NSN 5950-01-376-7623
NSN 6150-00-765-6475
NSN 5960-01-471-4263
NSN 5835-01-392-7683
NSN 5996-01-580-0582
NSN 6135-00-593-6831
NSN 5990-01-423-8189