3/8 RD X 1 1/4 X .218 ID
| Part | Between Board Height | Between Board Height | Between Board Height | Diameter - Inside [diameter] | Diameter - Inside [diameter] | Type | Material | Diameter - Outside [diameter] | Diameter - Outside [diameter] | Diameter - Outside [diameter] | Length - Overall [x] | Length - Overall [x] | Length - Overall [x] | Threaded/Unthreaded | Gender | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RAF Electronic Hardware  | 6.35 mm  | 0.25 in  | 0.25 in  | 0.218 in  | 5.54 mm  | Round Spacer  | Stainless Steel  | 0.375 in  | 0.375 in  | 9.53 mm  | 0.25 in  | 6.35 mm  | 0.25 in  | Unthreaded  | Female  |