This thread-retained plug is designed to apply axial force only on the installation hole, making it ideal for sealing holes with thin walls. It uses a metal-to-metal seal for high pressure applications and is both removable and reusable, providing easy access to sealed passageways. A.F.O. plugs feature a unique floating seal that self-aligns to allow for threaded holes that are not perfectly concentric with the through hole. Sizes range from 0.19 to 0.75 inches.
- Plug Diameter: 0.375 inches
- Max. Sealable Passageway Diameter: 0.276 inches
- Proof Pressure: 54,000 psi
- Plug Material: Stainless Steel
- Housing Material: Aluminum, or Stainless Steel
General Performance
- Stainless Steel: 54,000 psi
- Aluminum: 24,000 psi
- AISI 8630: 54,000 psi
Materials
- Threaded Body: 303 CRES, QQ-S-763C and AMS 5640 Type I, Passivate
- Nose: 15-5 PH CRES, AMS 5659, Passivate
Dimensional Views & Installation Hole Details
For dimensions, please refer to the Part Numbers & Specifications tab.
Part Numbers & Specifications
- Part Number: PLAA3724010A
- A Min.: 0.187
- A Max.: 0.276
- D Nom.: 0.129
- E* Min.: 0.454
- F Min.: 0.12
- Weight: 3.6 g
- B Thread: 0.375 - 24
- C Ref.: 0.455
- G Hex: 0.187
*Dimension (E) will vary with changes to dimension (A). All dimensions are in inches. This information is for reference only.
Replacement Parts & Accessories
- Coining Tool Part Number: CUTA3750163A
- Required Tool Rotation: 150° +/- 30°
- (Ref) Coining Torque (Aluminum Housing): 125 in-lbs
- Installation Torque (Aluminum Housing): 100 in-lbs
- (Ref) Coining Torque (Steel/AISI 8630 Housing): 275 in-lbs
- Installation Torque (Steel/AISI 8630 Housing): 220 in-lbs
- CAD Envelope: 375 Stainless Steel A.F.O. Plug Model (available upon request)
- Handbook: Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions (see PDF in documents)
- Product Video: Lee Plug Expansion Plug Features & Benefits Overview (see video link)
Technical Specifications
- Product Type: Thread-retained plug
- Seal Type: Metal-to-metal
- Removable/Reusable: Yes
- Self-aligning floating seal: Yes
- Size Range: 0.19 to 0.75 inches
- Proof Pressure (Stainless Steel): 54,000 psi
- Plug Material: 303 CRES, 15-5 PH CRES
- Housing Material: Aluminum or Stainless Steel
- Finish: Passivate
- Part Number Example: PLAA3724010A
- Weight: 3.6 g
- Thread: 0.375 - 24