Product Description
Armstrong Casing Capscrew (⅜"-16NC × 2¼") – Part No. 911121-118
Genuine Armstrong replacement casing capscrew, Armstrong part number 911121-118, for Series 4270 pumps. Shown as item 12 on the Series 4270 drawing (parts list 6042.124) – highlighted in the pictures above.
Specification: ⅜"-16NC × 2¼"
Fits these Armstrong pumps
- Series 4270 (close coupled) – pump sizes 1¼ × 1, 1½ × 1¼, 2 × 1½
- Drawing item: 12
Other parts for this pump
Rebuilding a Series 4270 1¼ × 1? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 1 | Casing | 410133-011 |
| 3 | Adapter bracket | 410133-191 |
| 4 | Impeller | 410133-111 |
| 4 | Impeller | 410133-141 |
| 5 | Mechanical seal assembly | 810134-000 |
| 6 | Faceplate | 411133-171 |
| 7 | Water slinger | 410133-181 |
| 8 | Vent plug | 935105-000 |
| 9 | Drain & gauge plugs | 935105-100 |
| 10 | Casing O-ring | AS1170-363 |
| 11 | Impeller nut | 913522-100 |
| 13 | Casing capscrew nut | 913521-100 |
| 14 | Adapter bracket capscrew | 911821-105 |
| F1 | Flush line male elbow | 939003-106 |
| F2 | Flush line male connector | 939001-105 |
| F3 | Flush line tubing | 997529-003 |
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4270, 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 911121-118
Part Type Hardware / Fitting
Fits Series 4270 1-1/4 x 1, 1-1/2 x 1-1/4, 2 x 1-1/2
Drawing Item 4270: item 12
Specification 3/8"-16NC x 2-1/4"
Shipping cost: Inquire
Parts Finder canadianpumpshop.com/armstrong-parts-finder/
