Item is critical to application (a-10 landing gear component) and is essential to weapon system performance and operation
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 6130-01-550-9056
NSN 5945-01-442-9439
NSN 5985-00-042-8084
NSN 5990-00-446-0518
NSN 5975-01-546-1533
NSN 5920-00-427-7267
NSN 6610-01-360-3564
NSN 6685-01-151-5408
NSN 5855-01-064-8961
NSN 5960-01-294-2397
NSN 5905-01-327-6979
NSN 6150-00-469-4301