The 3-520339-2 Ultra-Fast Fully Insulated FASTON Receptacle and Tab offers the advantage of a completely protected terminal and a wire crimp with comparable electromechanical performance to open barrel “F” crimp FASTON Terminals.

The “User-Friendly” design combines easy mating with rounded corners. The .187 and .250 series receptacles incorporate a two-stage roll configuration and a cantilever mounted dimple which provides easy insertion and multiple independent points of contact for reduced tab interface resistance.

Ultra-Fast Fully Insulated FASTON Receptacles, Flag Receptacles and Tabs preclude the need for costly electrical safety interlocks or special protective shields to help prevent shock hazards. In addition, electrical short circuits from exposed leads are eliminated, even in equipment requiring close contact spacing.


  • Terminal Type = Receptacle
  • Proprietary Name = Ultra-Fast
  • Receptacle Style = Flag
  • Mating Area Interface Dimensions (mm [in]) = 4.75 x 0.51 [.187 x .020]
  • Material = Brass
  • Insulation Diameter (mm [in]) = 4.69 [.185] Max.
  • Insulation Support = Non-Insulation Support
  • Finish = Tin
  • Wire Range (mm [AWG]) = 1.25-2.00² [16-14]
  • Fully Insulated = Yes
  • UL Flammability Rating = UL 94V-2
  • RoHS/ELV Compliance = RoHS compliant, ELV compliant
  • Lead Free Solder Processes = Not relevant for lead free process
  • RoHS/ELV Compliance History = Always was RoHS compliant
  • Packaging Method = Loose Piece

View the complete family of 3-52033x series Flag Receptacle

Download Center



Mfr Part#: 3-520339-2
Available In: BAG

Ultra Fast 16-14 AWG Straight Fully Insulated Receptacle Assembly


Technical Specifications:

Style: Type: Wire Gauge: Size:
Fully Insulated Receptacle AWG 16-14 Tab 0.187" x 0.020"
See the Download Center for a complete library of supporting documentation.


$0.1760 USD (each)
60 - 1999 $0.1760
2000+ $0.1670 (Save 5%)

Other quantities & packages (Reels) may also be available


Qty in Stock : 133
Reserve Stock:
Factory Stock: N/A
Factory Lead-Time: N/A
Min. Order Qty: 60
Multiple of: 1
Add to Cart