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 6135-01-108-6057
NSN 5905-01-256-6612
NSN 5965-01-426-5283
NSN 5975-00-825-6922
NSN 6320-01-134-5255
NSN 6110-00-771-8454
NSN 5835-01-359-2575
NSN 6240-00-789-3370
NSN 6320-00-779-5923
NSN 6320-01-245-5307
NSN 6320-01-498-4954
NSN 6105-00-959-5468