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 6110-01-391-7542
NSN 5996-00-581-5810
NSN 4140-01-444-0543
NSN 5835-01-411-7050
NSN 7035-00-392-5417
NSN 5998-01-415-2525
NSN 5965-01-085-6158
NSN 6150-01-376-4211
NSN 6685-01-191-4769
NSN 6110-01-216-5147
NSN 5905-01-411-6520
NSN 5950-01-283-7061