This thread-retained plug is designed to apply axial force only on the installation hole, making it ideal for sealing holes with thin walls. Constructed entirely of MP35N nickel-cobalt alloy, this A.F.O. plug is NACE-compliant and provides excellent corrosion resistance for harsh-duty applications found in the oil and gas industry. This plug uses a metal-to-metal seal for high pressure applications. It is both removable and reusable, providing easy access to sealed passageways. Sizes range from 0.19 to 0.75 inches.
- Plug Diameter: 0.312 inches
- Max. Sealable Passageway Diameter: 0.209 inches
- Proof Pressure: 56,000 psi
- Plug Material: MP35N
- Housing Material: Inconel, Monel, MP35N, or Titanium
General Performance
- Stainless Steel: 56,000 psi
- Aluminum: 26,000 psi
- AISI 8630: 56,000 psi
Materials
- Threaded Body: MP35N (NACE MR0175 / ISO 15156)
- Nose: MP35N (NACE MR0175 / ISO 15156)
Part Numbers & Specifications
- Part Number: PLAA3124020A
- A Min.: 0.136
- A Max.: 0.209
- D Nom.: 0.119
- E* Min.: 0.412
- F Min.: 0.09
- Weight: 2.1 g
- B Thread: 0.312 - 24
- C Ref.: 0.415
- G Hex: 0.156
Replacement Parts & Accessories
- Coining Tool Part Number: CUTA3120163A
- Required Tool Rotation: 150° +/- 30°
- Coining Torque (Aluminum Housing): 85 in-lbs
- Installation Torque (Aluminum Housing): 75 in-lbs
- Coining Torque (Steel/AISI 8630 Housing): 180 in-lbs
- Installation Torque (Steel/AISI 8630 Housing): 90 in-lbs
For dimensions, please refer to the Part Numbers & Specifications tab.
Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions Page A58
CAD Envelope: 312 MP35N A.F.O. Plug Model (available upon request)
Installation Procedure: PS 1013 H: Installation Procedures for A.F.O.Ā® Plugs (available upon request)
Installation & Manufacturing Tools: Download CUTA3120163A: Plug Coining Tool (available upon request)
Dual Sealing A.F.O.Ā® Plugs Provide Pre-Charge and Purge Functions (article available online)
Lee Plug Expansion Plug Features & Benefits Overview (video resource available online)
Technical Specifications:
- Plug Diameter: 0.312 inches
- Max. Sealable Passageway Diameter: 0.209 inches
- Proof Pressure: 56,000 psi
- Plug Material: MP35N
- Housing Material: Inconel, Monel, MP35N, or Titanium
- Part Number: PLAA3124020A
- Weight: 2.1 g
- B Thread: 0.312 - 24
- Coining Tool Part Number: CUTA3120163A
- Required Tool Rotation: 150° +/- 30°
- Coining Torque (Aluminum Housing): 85 in-lbs
- Installation Torque (Aluminum Housing): 75 in-lbs
- Coining Torque (Steel/AISI 8630 Housing): 180 in-lbs
- Installation Torque (Steel/AISI 8630 Housing): 90 in-lbs