Product Description
Armstrong Case Wear Ring (SAE 660 bronze) – Part No. 426412-421
Genuine Armstrong replacement case wear ring, Armstrong part number 426412-421, for Series 4380, 4300 pumps. Shown as item 90 on the Series 4380 drawing (parts list 6043.129 / 6043.130) – highlighted in the pictures above.
Specification: SAE 660 bronze
Fits these Armstrong pumps
- Series 4380 (vertical in-line) – pump sizes 8 × 8 × 11½
- Construction: Bronze fitted (BF)
- Drawing item: 90
- Series 4300 (vertical in-line) – pump sizes 8 × 8 × 11½
- Construction: Bronze fitted (125#), Ductile bronze fitted (250#), All bronze (125#)
- Drawing item: 90
Other parts for this pump
Rebuilding a Series 4380 8 × 8 × 11½? These parts are often replaced at the same time:
Showing 24 of 29 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.
Product Videos
Custom Field
Brand Armstrong
Armstrong Part Number 426412-421
Part Type Shaft, Sleeve & Wear Ring
Fits Series 4380 8 x 8 x 11-1/2
Fits Series 4300 8 x 8 x 11-1/2
Drawing Item 4300: item 90; 4380: item 90
Specification SAE 660 bronze
Shipping cost: Inquire
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