Product Description
Armstrong Casing – Base (lower Half) (125# cast iron) – Part No. D251861-211
Genuine Armstrong replacement casing – base (lower half), Armstrong part number D251861-211, for Series 4600 pumps. Shown as item 1 on the Series 4600 drawing (parts list 6046.100) – highlighted in the pictures above.
- Armstrong sells the base and cover as one part number (items 1 & 20).
- Same part number as item 1 – the base and cover come together.
Specification: 125# cast iron
Fits these Armstrong pumps
- Series 4600 (horizontal split case) – pump sizes 5 × 4 × 12H
- Drawing item: 1, 20
Other parts for this pump
Rebuilding a Series 4600 5 × 4 × 12H? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 2 | Stuffing box bushing | D251917-041 |
| 3 | Lantern ring | D118035-000 |
| 4 | Packing kit | 969000-028 |
| 5 | Gland stud nut | D112188-000 |
| 6 | Gland studbolt | D251908-071 |
| 7 | Bearing retainer | D251900-071 |
| 8 | Shaft | D251904-011 |
| 8 | Shaft | D251904-071 |
| 10 | Ball bearing (inboard) | 971101-925 |
| 11 | Inboard bearing housing | D251818-011 |
| 12 | Bearing removal nut | D251907-041 |
| 13 | Bearing housing capscrew | 911825-148 |
| 14 | Shaft sleeve (packing) | D251905-041 |
| 15 | Shaft split ring | D251915-041 |
| 16 | Gland plate | D251814-041 |
| 17 | Stuffing box extension | D251813-041 |
| 18 | Stuffing box | D251815-011 |
| 19 | Stuffing box O-ring | 961131-264 |
| 19A | Stuffing box gasket | D251936-000 |
| 21 | Impeller key | D251948-001 |
| 22 | Case wear ring | D251940-041 |
| 23 | Impeller | D251826-041 |
| 24 | Air vent | 939018-101 |
| 24B | Vent bushing | 931123-155 |
Showing 24 of 54 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4600, your pump size and motor to see every part on the drawing. Or send us your pump’s nameplate details – call (416) 236-2338 or email sales@bramhambros.com. Bramham Bros is an authorized Armstrong dealer.
Product Videos
Custom Field
Brand Armstrong
Armstrong Part Number D251861-211
Part Type Casing
Fits Series 4600 5 x 4 x 12H
Drawing Item 4600: item 1, 20
Specification 125# cast iron
Shipping cost: Inquire
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