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Plugs

312 MP35N High Pressure Dual Sealing A.F.O.® Plug

This thread-retained plug is designed to apply axial force only on the installation hole, making it ideal for sealing holes with thin walls. This NACE-compliant solution utilizes a metal-to-metal seal for high pressure applications and incorporates an O-ring for venting or charging. Pressure can be vented out of a side port to remove air from a hydraulic system or safely release trapped gas. A.F.O. plugs are both removable and reusable, providing easy access to sealed passageways.

Key Product Facts
  • Plug Diameter:0.312 inches
  • Max. Sealable Passageway Diameter:0.186 inches
  • Proof Pressure:50,000 psi
  • Plug Material:MP35N
  • Housing Material:Aluminum, Inconel, MP35N, Stainless Steel, or Titanium

Product Information

General Performance
 Open Closed
Proof Pressure (psi x 1000) 15 50
Materials
PART MATERIAL SPECIFICATION
Threaded Body MP35N NACE MR0175 / ISO 15156
Nose MP35N NACE MR0175 / ISO 15156
O-Ring FKM 90 durometer
Backup Rings PEEK -
Electrical Operation

For dimensions, please refer to the Part Numbers & Specifications tab.

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Image Specifications
Dimensional View
Installation Hole Details
Part Numbers & Specifications
Part Number A B C D E F G H Max I J K Request Information
PLAA3124220A 0.132 - 0.186 .3125 - 24 0.981 0.44 0.095 0.6 0.06 0.062 0.343 0.230 - 0.231 0.156 Request
All dimensions are in inches. This information is for reference only.

Installation & Accessories

Installation & Manufacturing Tools
Replacement Parts & Accessories
Coining Tool Part Number Required Tool Rotation Installation Torque (Aluminum Housing) (Ref) Coining Torque (Steel/AISI 8630 Housing) Installation Torque (Steel/AISI 8630 Housing)
CUTA3120363A 150° ± 30° 75 in-lbs 90 in-lbs 90 in-lbs
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From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.