Product Description
Armstrong Stuffing Box / Adapter – Part No. 426747-031
Genuine Armstrong replacement stuffing box / adapter, Armstrong part number 426747-031, 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); Cast iron combination stuffing box & adapter (items 40 & 50), ductile iron construction
Fits these Armstrong pumps
- Series 4380 (vertical in-line) – pump sizes 1½ × 1½ × 6, 2 × 2 × 6, 3 × 3 × 6, 4 × 4 × 6W
- Motor frames: 213JM, 215JM
- Pressure rating: 250#
- Designation: 'S'
- Drawing item: 40
- Series 4280 (close coupled end suction) – pump sizes 1½ × 1 × 6, 3 × 1½ × 6, 3 × 2 × 6, 3 × 2½ × 6, 4 × 3 × 6W
- Motor frames: 213JM, 215JM
- Construction: Ductile iron (250#)
- Designation: 'S'
- Drawing item: 40
Other parts for this pump
Rebuilding a Series 4380 1½ × 1½ × 6? These parts are often replaced at the same time:
Showing 24 of 31 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.
