3/8" Male BSPT Stainless Steel Socket Pipe Plug / END ITEM IDENTIFICATION: NSN 2320-016525208 DRIVE END STYLE: 9 RECESSED HEXAGON THREAD QUANTITY PER INCH: AAL INTERNAL NOMINAL THREAD SIZE: 0.375 INCHES INTERNAL SPECIAL FEATURES: OUTSIDEDIAMETER 0.66 INCHES, INSIDE DIAMETER IS 0.39 INCHES, WIDTH IS 0.47 INCHES MATERIAL: STEEL OVERALL