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 5975-01-583-7485
NSN 6110-00-581-4445
NSN 5895-01-543-9865
NSN 5998-00-043-1094
NSN 6135-01-461-2915
NSN 6130-01-274-0194
NSN 5985-00-581-0513
NSN 5965-01-216-1994
NSN 5905-01-623-7010
NSN 6685-00-708-2136
NSN 5965-01-060-2558
NSN 6145-00-216-6613