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 6220-01-205-7687
NSN 6150-00-054-4685
NSN 5950-01-384-6352
NSN 4140-01-383-6184
NSN 5960-01-548-4896
NSN 5835-01-623-3328
NSN 5915-01-187-5755
NSN 6320-01-173-7950
NSN 6620-01-223-9025
NSN 5910-01-602-8143
NSN 5905-01-410-7780
NSN 5975-01-425-0276