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 6240-01-252-8850
NSN 5985-00-095-6545
NSN 6320-01-220-2264
NSN 6110-00-800-9978
NSN 5895-01-212-3656
NSN 5835-01-152-9483
NSN 5920-01-375-1238
NSN 5910-01-477-5341
NSN 6610-01-376-3993
NSN 5925-01-604-8859
NSN 5965-01-350-1890
NSN 2925-01-185-9144