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 6610-00-753-2281
NSN 6610-00-716-5248
NSN 5895-01-163-8431
NSN 6320-01-177-3192
NSN 5935-01-400-0967
NSN 5835-00-617-3578
NSN 6145-01-005-4654
NSN 5996-01-512-2040
NSN 5975-01-425-1669
NSN 7035-01-089-4485
NSN 5999-00-943-9258
NSN 5965-01-087-5446