Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
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Festo
531703
Air line lubricator MS4N-LOE-1/8-R
The Festo 531703 is a proportional standard oil mist lubricator of size 4 from the MS series, featuring a 30 ml max oil capacity and an integrated plastic bowl guard. It operates within a pressure range of 1 bar to 12 bar, requiring a minimum flow rate of 40 l/min and delivering a normal nominal flow rate of 1100 l/min using compressed air or inert gases. Engineered for vertical mounting within ±5°, this 194 g component supports in-line installation or accessory mounting and exhibits a corrosion resistance class of 2 with moderate corrosion stress. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 531703
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 531703.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- 4
- Series
- MS
- Mounting position
- Vertical ±5°
- Structural design
- Proportional standard oil mist lubricator
- Max. oil capacity
- 30 ml
- Bowl guard
- Plastic bowl guard
- Operating pressure
- 1 bar...12 bar
- Minimum ow rate for lubricator function
- 40 l/min
- Normal nominal ow rate (normalized to DIN 1343)
- 1100 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
- Information on operating and pilot media
- Lubricated operation possible
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -10 °C...60 °C
- For use in the food industry
- See supplementary material information
- Temperature of medium
- -10 °C...60 °C
- Oil viscosity
- ISO VG 32
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 194 g
- Type of mounting
- Alternatively: | In-line installation | With accessories
- Pneumatic connection 1
- 1/8 NPT
- Pneumatic connection 2
- 1/8 NPT
- Note on materials
- RoHS compliant
- Housing material
- Die-cast aluminum
- Material of bowl
- PC
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 531703. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.