3/8 RD X 5/8 X .192 ID
| Part | Material | Gender | Between Board Height | Between Board Height | Between Board Height | Type | Threaded/Unthreaded | Diameter - Inside [diameter] | Diameter - Inside [diameter] | Diameter - Outside [diameter] | Diameter - Outside [diameter] | Diameter - Outside [diameter] | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
RAF Electronic Hardware  | Aluminum  | Female  | 15.88 mm  | 0.625 in  | 0.625 in  | Round Spacer  | Unthreaded  | 4.88 mm  | 0.192 in  | 0.375 in  | 0.375 in  | 9.53 mm  |