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 5920-01-234-8309
NSN 5999-01-163-1416
NSN 5998-01-494-3925
NSN 5975-00-383-7679
NSN 6610-01-425-6960
NSN 6150-01-541-4594
NSN 6685-01-539-2969
NSN 2925-01-166-4589
NSN 6110-01-053-0041
NSN 5996-01-398-0037
NSN 6650-00-220-2839
NSN 5895-01-378-2122