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 5905-00-707-1030
NSN 7035-01-323-0164
NSN 6645-00-108-6479
NSN 5960-01-340-9485
NSN 4140-01-481-2542
NSN 6150-01-495-3302
NSN 5895-01-121-8716
NSN 6150-01-501-5494
NSN 6145-01-120-5623
NSN 5910-00-647-4059
NSN 6610-01-044-4740
NSN 5835-01-424-0054