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 5915-00-435-3467
NSN 6110-00-218-0967
NSN 6220-01-634-0660
NSN 5975-01-202-4426
NSN 5905-01-196-3557
NSN 6650-00-826-7396
NSN 6110-00-144-6763
NSN 5925-01-407-5954
NSN 5990-01-211-6136
NSN 2925-01-430-4206
NSN 5950-01-223-4874
NSN 5930-01-200-7885