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 5920-00-849-3865
NSN 6110-01-356-4735
NSN 5975-00-149-0758
NSN 5985-01-334-9776
NSN 5945-01-393-9746
NSN 6685-01-041-4407
NSN 5996-01-145-4900
NSN 5930-01-168-4124
NSN 6110-01-219-9926
NSN 5945-00-137-6257
NSN 5950-01-215-1260
NSN 5895-00-070-0649