Moyno® 356 Pump Parts
OEM-compatible replacement components and part-number cross-references for supported Moyno® 356 progressive cavity pumps.
ACCA Pumps organizes 356 rotors, stators, flexible joints, drive shafts, bearings, sealing components and service hardware using the OEM 500 Series service structure.
356 Engineering Overview
The 356 is part of the Moyno® 500 Series 300-model family. It uses a flexible joint to transmit torque between the drive shaft and rotor while accommodating eccentric rotor motion. The 356 includes mechanical-seal and packing-gland configurations. Packing models use lantern-ring halves and can be grease lubricated or water flushed.
Flexible-Joint Drive
Inspect the shaft, flexible joint and rotor together during overhaul because wear in one component can affect adjacent drive-train parts.
Model Identification
Use the complete model suffix and serial number. Material and sealing variations can change the applicable OEM part number.
Rotor & Stator Selection
The 356 uses model-specific rotor and stator part numbers listed in the OEM service documentation.
356 Engineering Data
| Engineering Data | Specification |
|---|---|
| Pump Family | Moyno® 500 Series |
| Base Model | 356 |
| Joint Design | Flexible joint |
| Suction Port | 1-1/2 in NPT |
| Discharge Port | 1-1/4 in NPT |
| Maximum Discharge Pressure | 50 PSI |
| Maximum Speed | 1750 RPM |
| Stator Elastomers Listed | NBR, EPDM, FPM |
| Nylon Configurations | Excluded from ACCA 500 Series catalog |
Moyno 356 Replacement Parts Reference
ACCA part numbers use the OEM part number with an A- prefix. The table preserves model and material distinctions from the OEM service documentation; nylon-specific components are omitted.
| Ref. | Component Description | ACCA Part Number | OEM Part Number | Notes / Applicable Types |
|---|---|---|---|---|
| 1 | Pump Body – Cast Iron Mechanical Seal | A-340-0636-000 | 340-0636-000 | 35601 |
| 1 | Pump Body – 316 SS Mechanical Seal | A-340-1550-000 | 340-1550-000 | 35604 |
| 1 | Pump Body – Cast Iron Packing | A-350-0420-000 | 350-0420-000 | 35611 |
| 1 | Pump Body – 316 SS Packing | A-350-0491-000 | 350-0491-000 | 35613 |
| 2 | Suction Housing – Cast Iron | A-350-0280-000 | 350-0280-000 | 35601 / 35611 |
| 2 | Suction Housing – 316 SS | A-350-0489-000 | 350-0489-000 | 35604 / 35613 |
| 21 | Stator – NBR | A-340-3505-120 | 340-3505-120 | 356 |
| 21 | Stator – EPDM | A-340-3505-320 | 340-3505-320 | 356 |
| 21 | Stator – FPM | A-340-3505-520 | 340-3505-520 | 356 |
| 22 | Rotor – 416 Stainless Steel | A-320-2304-000 | 320-2304-000 | 356 |
| 22 | Rotor – 316 Stainless Steel | A-320-4431-000 | 320-4431-000 | 356 |
| 24 | Flexible Joint – Carbon Steel / NBR | A-320-1583-000 | 320-1583-000 | 356 |
| 24 | Flexible Joint – 316 SS / NBR | A-320-4427-000 | 320-4427-000 | 356 |
| 24 | Flexible Joint – 316 SS / EPDM | A-320-6369-000 | 320-6369-000 | 356 |
| 24 | Flexible Joint – 316 SS / FPM | A-320-4671-000 | 320-4671-000 | 356 |
| 26 | Drive Shaft – 35601 – 416 Stainless Steel | A-320-1759-000 | 320-1759-000 | 356 |
| 26 | Drive Shaft – 35604 – 316 Stainless Steel | A-320-4430-000 | 320-4430-000 | 356 |
| 26 | Drive Shaft – 35611 – Packing | A-320-2765-000 | 320-2765-000 | 356 |
| 26 | Drive Shaft – 35613 – Stainless Packing | A-320-4435-000 | 320-4435-000 | 356 |
| 29 | Bearing (2 required) | A-630-0552-051 | 630-0552-051 | 356 |
| 33 | Bearing Spacer | A-320-2764-000 | 320-2764-000 | 356 packing models |
| 41 | Packing Gland – Cast Iron | A-320-0003-004 | 320-0003-004 | 35611 |
| 41 | Packing Gland – 316 SS | A-320-0003-007 | 320-0003-007 | 35613 |
| 42 | Packing | A-340-3396-008 | 340-3396-008 | 356 packing models |
| 47 | Gland Bolt | A-619-1530-241 | 619-1530-241 | 356 packing models |
| 57 | Lantern Ring Half (2 required) | A-320-6585-000 | 320-6585-000 | 356 packing models |
| 66 | Snap Ring | A-320-1758-000 | 320-1758-000 | 356 |
| 66A | Shaft Snap Ring | A-320-3533-000 | 320-3533-000 | 356 packing models |
| 69 | Mechanical Seal – NBR | A-320-3945-000 | 320-3945-000 | 356 mechanical-seal models |
| 69 | Mechanical Seal – EPDM | A-320-6380-000 | 320-6380-000 | 356 conversion |
| 69 | Mechanical Seal – FPM | A-320-6510-000 | 320-6510-000 | 356 conversion |
| 69A | Seal Spacer | A-320-4434-000 | 320-4434-000 | 356 mechanical-seal models |
| 77 | Slinger Ring | A-320-6383-000 | 320-6383-000 | 356 mechanical-seal models |
| 77 | Slinger Ring – Packing | A-320-6385-000 | 320-6385-000 | 356 packing models |
| 112 | Screws (6 required) | A-619-1530-161 | 619-1530-161 | 356 |
| 115 | Zerk Fitting | A-320-2503-001 | 320-2503-001 | 356 packing models |
| 135 | Stator Spacer | A-330-7594-000 | 330-7594-000 | 356 |
| 202 | Shaft Key | A-611-0040-240 | 611-0040-240 | 356 |
| 215 | Lock Washer (6 required) | A-623-0010-411 | 623-0010-411 | 356 |
| 261 | Pipe Plug | A-610-0120-011 | 610-0120-011 | 356 cast-iron configuration |
| 261 | Pipe Plug | A-610-0420-010 | 610-0420-010 | 356 stainless configuration |
| KIT | Elastomer Repair / Conversion Kit – Mechanical Seal NBR | A-311-9033-000 | 311-9033-000 | 356 |
| KIT | Elastomer Repair / Conversion Kit – Mechanical Seal EPDM | A-311-9032-000 | 311-9032-000 | 356 |
| KIT | Elastomer Repair / Conversion Kit – Mechanical Seal FPM | A-311-9058-000 | 311-9058-000 | 356 |
| KIT | Elastomer Repair / Conversion Kit – Packing NBR | A-311-9035-000 | 311-9035-000 | 356 |
| KIT | Elastomer Repair / Conversion Kit – Packing EPDM | A-311-9034-000 | 311-9034-000 | 356 |
| KIT | Elastomer Repair / Conversion Kit – Packing FPM | A-311-9059-000 | 311-9059-000 | 356 |
356 Repair and Conversion Kits
| Configuration / Elastomer | ACCA Kit Number | OEM Kit Number |
|---|---|---|
| Mechanical Seal NBR | A-311-9033-000 | 311-9033-000 |
| Mechanical Seal EPDM | A-311-9032-000 | 311-9032-000 |
| Mechanical Seal FPM | A-311-9058-000 | 311-9058-000 |
| Packing NBR | A-311-9035-000 | 311-9035-000 |
| Packing EPDM | A-311-9034-000 | 311-9034-000 |
| Packing FPM | A-311-9059-000 | 311-9059-000 |
500 Series Internal Construction
Service as an Assembly
During overhaul, inspect the rotor, stator, flexible joint, shaft, bearings and sealing components for coordinated wear.
Related 500 Series Models
Need Help Identifying Moyno 356 Parts?
Send the complete pump model, serial number and OEM part number when available.
Trademark Disclaimer: Moyno® is a registered trademark of its respective owner. References are used solely to identify compatible equipment and replacement applications. ACCA Pumps is an independent aftermarket manufacturer and is not affiliated with or endorsed by the trademark owner.
Complete 356 Replacement Pump
If the application requires a complete pump rather than individual components, review the Moyno 356 compatible replacement pump from ACCA Pumps.
Complete 356 Replacement Pump
If the application requires a complete pump rather than individual replacement parts, review the Moyno 356 compatible replacement pump from ACCA Pumps.