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 5975-00-157-9676
NSN 5950-01-594-6456
NSN 5895-01-422-2537
NSN 4140-01-123-9149
NSN 7035-00-884-8366
NSN 2925-01-100-3694
NSN 6610-01-400-3880
NSN 7035-01-091-6233
NSN 5835-00-102-2373
NSN 5895-00-150-2347
NSN 6150-00-464-6323
NSN 5965-01-439-0793