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 5910-00-490-3737
NSN 6240-01-068-3491
NSN 5985-00-466-3574
NSN 7035-00-020-2227
NSN 5996-01-421-4761
NSN 7035-00-155-9513
NSN 6130-01-160-9478
NSN 6135-01-633-8502
NSN 5910-01-123-5321
NSN 4140-00-494-8299
NSN 6220-01-476-9155
NSN 7035-01-055-6413