Product Description
Armstrong O-ring – Part No. 961131-243
Genuine Armstrong replacement o-ring, Armstrong part number 961131-243, for Series 4030 pumps. Shown as item 31 on the Series 4030 drawing (parts list 6040.120 / 6040.121 / 6040.122) – highlighted in the pictures above.
- Included in bearing frame assembly 426773-000.
- Included in bearing frame assembly 426773-071.
- Included in bearing frame assembly 427817-000.
- Included in bearing frame assembly 427817-071.
Fits these Armstrong pumps
- Series 4030 (base mounted end suction) – pump sizes 4 × 3 × 6, 3 × 1½ × 8, 3 × 2 × 8, 3 × 2½ × 8, 4 × 3 × 8, 5 × 4 × 8W, 6 × 4 × 8W, 6 × 5 × 8, 8 × 8 × 8, 2 × 1 × 10, 2 × 1½ × 10, 3 × 1½ × 10, 3 × 2 × 10, 3 × 2½ × 10, 4 × 3 × 10, 5 × 4 × 10, 6 × 4 × 10, 6 × 5 × 10, 8 × 6 × 10W, 4 × 3 × 11½, 5 × 4 × 11½, 6 × 5 × 11½, 8 × 6 × 11½, 3 × 1½ × 13, 3 × 2 × 13, 4 × 3 × 13, 4 × 3 × 13L, 6 × 4 × 13, 6 × 4 × 13H, 6 × 5 × 13, 6 × 5 × 13H, 8 × 6 × 13
- Designation: 'M', 'MHD', 'MXHD'
- Motor frames: 254T, 256T, 284TS, 286TS, 324TS, 326TS, 364TS, 365TS, 213T, 215T, 404TS, 405TS, 284T, 286T, 324T, 326T
- Bearings: Oil lubricated bearings
- Drawing item: 31
Other parts for this pump
Rebuilding a Series 4030 4 × 3 × 6? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 21 | Shaft & sleeve assembly | 426761-001 |
| 21 | Shaft & sleeve assembly | 426761-071 |
| 22 | Inboard bearing | 971101-384 |
| 22 | Inboard bearing | 971101-383 |
| 22 | Inboard bearing | 971101-917 |
| 23 | Outboard bearing | 971101-704 |
| 23 | Outboard bearing | 971101-703 |
| 23 | Outboard bearing | 971101-918 |
| 24 | Lockwasher | 426364-007 |
| 25 | Locknut | 426364-006 |
| 26 | Bearing frame (housing) | 426765-012 |
| 26 | Bearing frame (housing) | 426765-013 |
| 26 | Bearing frame (housing) | 426765-011 |
| 28 | Oil seal (outboard) | 965001-150 |
| 29 | Bearing cover | 426767-011 |
| 29 | Bearing cover | 426767-012 |
| 29 | Bearing cover | 426767-013 |
| 30 | Oil seal (inboard) | 965001-120 |
| 32 | Bearing cover capscrew | 911121-110 |
| 33 | Oil view gauge | 116904-000 |
| 34 | Air vent | 407444-000 |
| 35 | Pipe plug | 937105-200 |
| 36 | Impeller key | 428161-714 |
| 37 | Grease fitting | 425030-011 |
Showing 24 of 55 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4030, 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 961131-243
Part Type Gasket / O-Ring
Fits Series 4030 (1) 4 x 3 x 6, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8W, 6 x 4 x 8W, 6 x 5 x 8, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10, 3 x 2-1/2 x 10, 4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10W
Fits Series 4030 (2) 4 x 3 x 11-1/2, 5 x 4 x 11-1/2, 6 x 5 x 11-1/2, 8 x 6 x 11-1/2, 3 x 1-1/2 x 13, 3 x 2 x 13, 4 x 3 x 13, 4 x 3 x 13L, 6 x 4 x 13, 6 x 4 x 13H, 6 x 5 x 13, 6 x 5 x 13H, 8 x 6 x 13
Drawing Item 4030: item 31
Shipping cost: Inquire
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