Product Description
Armstrong Stuffing Box / Adapter – Part No. 426754-031
Genuine Armstrong replacement stuffing box / adapter, Armstrong part number 426754-031, for Series 4380, 4280 pumps. Shown as item 40 on the Series 4380 drawing (parts list 6043.129 / 6043.130) – highlighted in the pictures above.
- Ductile iron construction uses the −031 / −035 suffix per Armstrong’s note – confirm with your pump serial number.
Specification: Combination stuffing box & adapter (items 40 & 50) – suffix per Armstrong’s construction note; Combination stuffing box & adapter (items 40 & 50), ductile iron construction
Fits these Armstrong pumps
- Series 4380 (vertical in-line) – pump sizes 1½ × 1½ × 10, 2 × 2 × 10, 3 × 3 × 10, 6 × 6 × 10, 8 × 8 × 10
- Designation: 'M'
- Motor frames: 213JP, 215JP
- Pressure rating: 250#
- Drawing item: 40
- Series 4280 (close coupled end suction) – pump sizes 2 × 1 × 10, 2 × 1½ × 10, 3 × 1½ × 10, 3 × 2 × 10, 5 × 4 × 10, 6 × 4 × 10, 6 × 5 × 10
- Designation: 'M'
- Motor frames: 213JP, 215JP
- Construction: Ductile iron (250#)
- Drawing item: 40
Other parts for this pump
Rebuilding a Series 4380 1½ × 1½ × 10? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 39 | Water slinger | 419315-000 |
| 40 | Stuffing box / adapter | 426754-011 |
| 40 | Stuffing box / adapter | 426755-011 |
| 40 | Stuffing box / adapter | 426755-031 |
| 40 | Stuffing box / adapter | 426756-011 |
| 40 | Stuffing box / adapter | 426756-031 |
| 43 | Motor washer | 927117-100 |
| 44 | Motor capscrew | 911125-110 |
| 44 | Motor capscrew | 911129-110 |
| 57 | Male connector | 939001-114 |
| 59 | Flush line tubing | 997531-004 |
| 62 | Mechanical seal kit | 975000-984 |
| 62 | Mechanical seal kit | 9975001-833 |
| 62 | Mechanical seal kit | 9975001-633 |
| 62 | Mechanical seal kit | 9975001-837 |
| 62 | Mechanical seal kit | 9975001-838 |
| 70 | Shaft sleeve | 425869-021 |
| 70 | Shaft sleeve | 425869-003 |
| 71 | Shaft sleeve spacer | 425868-004 |
| 80 | Impeller | 426256-041 |
| 83 | Impeller washer | 425742-003 |
| 84 | Impeller lockwasher | 927213-400 |
| 86 | Impeller capscrew | 911900-119 |
| 90 | Case wear ring | 426416-402 |
Showing 24 of 30 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4380, 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.
