Check the listing for details. 2 EA NOS STEEL REDUCER NIPPLE FITTING P/N: MS24399J3 NEW. Condition: New other (see details). Listed at 5.00 USD. THIS IS FOR 2 EA REDUCER NIPPLE FITTING USED ON VARIOUS AIRCRAFT. MANY APPLICATIONS POSSIBLE: AEROSPACE, MARINE, AUTOMOTIVE, RACING, INDUSTRIAL, EXPERIMENTAL, ETC. NEW, UNUSED P/N: MS24399J3 NSN: 4730-00-541-8287 SHIPPING COST ADJUSTED FOR MULTIPLE QUANTITIES PURCHASED. SOLD AS-IS. Thread Class3A all endsAGAVEnd Item Identification26F aircraftAHNCConnection StyleFlared W/ gasket seal (boss) all endsAWLSConnection TypeThreaded external boss all endsCQJXNominal Thread Size0.375 inches 2ND endCQJXNominal Thread Size0.438 inches 1ST endCQRBSeat Angle37.0 degrees all endsCWFRNominal Overall Length1.281 inchesMATTMaterialSteel comp 302 overallMDCLMaterial Document and Classification66 fed std single material response overallSFTTSurface TreatmentPassivate overallTHSDThread Series DesignatorUnf all endsZZZKSpecification/Standard Data88044-AN919 government standard