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 5985-00-368-4530
NSN 4140-00-150-8265
NSN 6620-00-189-0967
NSN 6220-00-635-8818
NSN 6320-01-162-5977
NSN 6130-01-251-0124
NSN 6145-00-487-9575
NSN 5935-01-091-9610
NSN 6130-01-061-8878
NSN 6130-01-444-2201
NSN 6645-00-418-2133
NSN 6110-01-010-4551