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 6135-01-378-3331
NSN 5985-01-010-0835
NSN 5915-01-076-4200
NSN 6220-00-506-1301
NSN 2925-01-118-6125
NSN 5935-01-172-2611
NSN 5990-00-419-0236
NSN 5996-01-359-0057
NSN 6110-01-633-9660
NSN 6620-01-352-5640
NSN 5985-00-061-2656
NSN 6105-00-598-4910