3/8"-16 SAE J995 Grade 8 Yellow Zinc Finish Steel Jam Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM END ITEM IDENTIFICATION: 2320-01-465-2174; MRAP - COUGAR ISS 1.0; MRAP - M-AT WIDTH ACROSS FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM THREAD SERIES: UNC THREAD QUANTITY PER INCH: 16 NOMINAL THREAD SIZE: 0.380 INCHES BEARING SURFACE TYPE: FLAT PART NAME ASSIGNED BY CONTROLLING AGENCY: JAM NUT SPECIAL FEATURES: FINISH (2) COATS DACROMAT COATING AND (2) COATS PLUS BLACK SEALER MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: SAE J995 GR 8 ASSN STD ALL MATERIAL RESPONSES OVERALL PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: ZINC OVERALL AND DICHROMATE SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633, TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL