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 5915-00-879-5892
NSN 5985-00-193-3501
NSN 5999-01-306-4474
NSN 5925-01-181-7283
NSN 5935-01-385-0626
NSN 4140-01-450-3049
NSN 6320-01-198-4024
NSN 5990-00-999-8486
NSN 5975-00-665-3644
NSN 5925-00-383-9707
NSN 5975-00-060-4050
NSN 6320-01-512-2031