Jy3470A2039pn Electrical Cable Connector Mil-C-26482 Series Terminal Receptacle
JY3470A2039PN Narrow Flange Bayonet Receptacle, GJB598 Series 2 / MIL-DTL-26482 Series II
The JY3470A2039PN is a bayonet-coupling circular electrical connector receptacle designed for aerospace, avionics, and industrial platforms. It conforms to GJB598 Series 2 / JY3470 requirements and is interchangeable with the MS3470A20-39PN designation used in MIL-DTL-26482 Series II supply chains.
This Class A narrow-flange panel receptacle features shell size 20, insert arrangement 20-39 (39 contacts), pin contacts (P), and normal keying (N). The design supports environment-resistant sealing, scoop-proof bayonet mating, and removable crimp contacts for reliable signal and power interconnect.
Product Features
- Conformant to GJB598 Series 2 JY3470 (equivalent to MIL-DTL-26482 Series II / MS3470)
- Interchangeable with cross-reference part number MS3470A20-39PN
- Bayonet quick-coupling for fast, vibration-resistant mating
- Narrow flange panel-mount receptacle for front-panel installation
- Class A shell finish (black anodized aluminum style)
- Pin contact configuration (P) with insert arrangement 20-39: typically 2 x #16 + 37 x #20 contacts
- Normal keying (N) for standard polarization and anti-mismatch mating
Technical Specifications - JY3470A2039PN
| Parameter | Value |
|---|---|
| Part Number | JY3470A2039PN |
| Alternate Writing | JY3470A20-39PN |
| Equivalent Part Number | MS3470A20-39PN |
| Series | GJB598 Series 2 / MIL-DTL-26482 Series II |
| Connector Type | Narrow flange mount receptacle (JY3470 / MS3470) |
| Coupling | Bayonet lock |
| Shell Class | A - Black anodized aluminum |
| Shell Size | 20 |
| Insert Arrangement | 20-39 (39 contacts: typically 2 x #16 + 37 x #20) |
| Contact Gender | P - Pin contacts (crimp, removable) |
| Keying / Polarization | N - Normal |
| Mounting | Narrow flange panel mount |
| Termination | Crimp |
| Operating Temperature | Approximately -55°C to +200°C (confirm by class and datasheet) |
| Compatible Mating | JY3475 / JY3476 (or MS3475 / MS3476) plugs, shell size 20, arrangement 39, socket contacts, keying N |
Part Number Breakdown
| Segment | Meaning |
|---|---|
| JY3470 | Series 2 narrow flange bayonet receptacle (MS3470 equivalent) |
| A | Class A shell finish (black anodized) |
| 20 | Shell size 20 |
| 39 | Insert arrangement 39 (written as 2039 or 20-39) |
| P | Pin contacts |
| N | Normal keying position |
Related options: JY3470L2039PN / MS3470L20-39PN uses electroless nickel finish (L); socket versions use S contacts; alternate keying uses A–W positions as applicable. Wide-flange and jam-nut receptacles are covered by JY3472 / JY3474 families. There is no functional difference between JY3470 and MS3470 prefixes for form-fit-function mating within the same Series II family.
Compatible Applications
The JY3470A2039PN narrow flange receptacle is intended for platforms that require compact, environment-resistant bayonet interconnects with high contact count. Typical use cases include:
- Aircraft and helicopter wiring harness panel interfaces
- Avionics LRUs, radar, and communication equipment
- Ground vehicles and rugged electronic enclosures
- Shipboard and outdoor equipment requiring sealed circular connectors
- Industrial systems that standardize on GJB598 / MIL-DTL-26482 Series II interfaces
Selection Guide
| Requirement | Recommended Choice |
|---|---|
| Narrow flange receptacle, size 20 / arrangement 39 / pins / keying N | JY3470A2039PN - this product |
| Same receptacle with nickel finish | JY3470L2039PN (MS3470L20-39PN) |
| Matching plug with socket contacts | JY3475 / JY3476, shell size 20, arrangement 39, S contacts, keying N |
| Wide flange or jam-nut mounting | JY3472 or JY3474 series with the same size, arrangement, and keying |
Installation Notes
- Verify shell size, insert arrangement, contact gender, finish class, and keying before mating.
- Use the correct crimp tooling for #16 and #20 contacts specified by arrangement 20-39.
- Mount the narrow flange securely to the panel and keep sealing surfaces clean.
- Cap unused receptacles to protect the interface when not mated.
- Select matching plug and cable accessories compatible with MIL-DTL-26482 Series II / GJB598 Series 2 interfaces.
Why Choose JY3470A2039PN
Form-Fit-Function Compatibility
Choosing JY3470A2039PN ensures form-fit-function compatibility with MS3470A20-39PN supply chains while meeting GJB598 Series 2 requirements. The narrow-flange bayonet receptacle geometry supports fast mating, environmental durability, and reliable multi-circuit interconnect in aerospace and industrial systems.
Ordering Information
Order by the GJB598 designation JY3470A2039PN (also written JY3470A20-39PN), or cross-reference as MS3470A20-39PN, depending on your procurement standard. When requesting a quote, please confirm mating plug part number, contact plating, mounting panel cut-out, and required quantity.
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