This Remington manufactured nylon rear sight washer is for the model 742 Woodsmaster semi-auto rifle when using the early style rear sight (#28200). This washer is in near excellent condition with light wear. (file photo)
Note: Remington model 742 Woodsmaster semi-auto rifles with the following serial numbers have been observed with this part: 393005, 7030840
.308 Win: 43528, 207283 & 250808