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 5935-00-944-5735
NSN 5915-01-152-1907
NSN 2925-00-463-1282
NSN 5930-01-078-3700
NSN 6150-01-033-6744
NSN 5905-01-361-1514
NSN 5945-01-536-3925
NSN 6685-01-398-5482
NSN 6110-01-153-2290
NSN 5996-00-869-0812
NSN 6150-00-265-7799
NSN 6150-01-490-7147