To purchase parts for the OBS-18 (Base Assembly):
1. Reference the part needed from the parts diagram and refer to the parts list below.2. Copy the Part Number and paste it into the search window above to see availability and pricing.
3. Confirm your parts selection and "Add To Cart".
| ITEM | QTY | PART NUMBER | DESCRIPTION |
| 1 | 4 | 962411 | SCREW, 1/4-20 X 3/4 SF ST CAP |
| 2 | 1 | 56109699 | CAM ASSY WITH GRIP |
| 3 | 1 | 56381766 | LINK ARM, RIGHT |
| 4 | 1 | 56381767 | LINK ARM, LEFT |
| 5 | 1 | 56381768 | SHAFT, AXLE |
| 6 | 1 | 56382759 | PAD, RED, 12 X 18 |
| 7 | 1 | 25908A | FRAME, MAIN |
| 9 | 1 | AS009400 | GRIP FACE, W/ 2.5 DIA. HOLE |
| 10 | 2 | 39857A | WHEEL 5 POLISHER |
| 11 | 1 | 54930A | HANDLE, LIFT |
| 12 | 1 | 62814A | ECCENTRIC |
| 13 | 1 | 66981A | RETAINER, BEARING |
| 14 | 1 | 66982A | RETAINER, ECCENTRIC |
| 15 | 1 | 85718A | BOLT, HEX, 1/2 X 3/4 |
| 16 | 1 | 920248 | NUT 3/8-16 ESNA LIGHT |
| 17 | 4 | 980614 | WASHER, LOCK, 1/4, EXT. TOOTH |
| 18 | 1 | 925589 | PIN, ROLL, 1/8 X 1/2 |
| 20 | 2 | 980648 | WASH-17/32 ID X 1&1/16 OD PLN |
| 21 | 4 | 10666A | SPRING MOUNT KIT |
| 22 | 1 | 29931A | BASE, ORBITAL |
| 23 | 1 | 50736A | BEARING, 66008 |
| 24 | 2 | 80292A | SCREW .25-20 X 1.00 BHHR SEMS |
| 25 | 4 | 80295A | WASHER BOWED .516ID X 1.06OD |
| 26 | 4 | 81220A | NUT, HEX,1/4-20, SERRATED, FLANGE |
| 27 | 3 | 87700A | SCREW, 1/4-20 X 12 BUTTON HD |
| 29 | 1 | AS087800 | WASHER, WEAR, CAM |
| 30 | 1 | AS105600 | SKIRT, DUST, OBS-18 |