3/8" JIC 37° Steel Bulkhead Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND LOCKING FEATURE: SELF-LOCKING NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.280 INCHES NOMINAL END ITEM IDENTIFICATION: 2355-01-552-5199 MRAP COUGAR WIDTH ACROSS FLATS: 0.812 INCHES NOMINAL THREAD SERIES: NPT THREAD QUANTITY PER INCH: 18 NOMINAL THREAD SIZE: 0.5625 INCHES BEARING SURFACE TYPE: CHAMFERED PART NAME ASSIGNED BY CONTROLLING AGENCY: BULDHEAD LOCK NUT MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL