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 5835-00-441-5004
NSN 5935-00-312-2576
NSN 6130-00-307-4606
NSN 5895-00-690-9624
NSN 5905-01-603-2424
NSN 6130-00-455-6680
NSN 5999-01-250-8127
NSN 5950-01-442-6188
NSN 5990-01-095-8866
NSN 5930-01-056-5382
NSN 5945-01-512-0284
NSN 5925-01-371-6994