12-4 UNJF Thread Reducer Boeing CH-47 Chinook MS21916D12-4 4730-00-640-5860

12-4 UNJF Thread Reducer Boss. Fits Boeing Vertol CH-47 Chinook. P/n MS21916D12-4. NSN 4730-00-640-5860. SPECS: AAJD Thread Class 3A all ends ACSP Reducer Type Concentric AGAV End Item Identification Used on boeing vertol cargo transport helicopter, model CH-47 AHNC Connection Style External seat for gasket seal (boss) all ends AWLS Connection Type Threaded external boss all ends CMLP Thread Quantity per Inch 12 1ST end CQJX Nominal Thread Size 0.438 inches 2ND end CQJX Nominal Thread Size 1.062 inches 1ST end CWFR Nominal Overall Length 1.531 inches MATT Material Aluminum alloy 2024 overall MDCL Material Document and Classification QQ-A-225/6, T6 fed spec single material response overall SFTT Surface Treatment Anodize overall STDC Surface Treatment Document and Classification MIL-A-8625 mil spec single treatment response overall THSD Thread Series Designator Unj 1ST end THSD Thread Series Designator Unjf 2ND end ZZZK Specification/Standard Data 96906-MS21916 government standard Get it here and save 12990 WRD20