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 5835-00-021-5913
NSN 6110-01-114-3200
NSN 6220-01-398-8937
NSN 6685-01-055-3512
NSN 6685-00-080-7119
NSN 6135-00-246-0324
NSN 2925-01-087-4184
NSN 6105-01-355-8912
NSN 6135-01-563-4445
NSN 6240-00-299-9819
NSN 4140-01-458-0356
NSN 6150-01-045-8931