JY27467T09B98PN Circular Connector | MIL-DTL-38999 Series Equivalent
| Origin: | China | HS Code: | 8536909000 |
| Surface Treatment:: | Cadmium, Olive Drab | Operating Temperature:: | -65°C~175°C |
JY27467T09B98PN Bayonet Circular Connector Plug, GJB599 Series I / D38999 Series I
The JY27467T09B98PN is a bayonet-coupling circular electrical connector plug designed for aerospace, avionics, and industrial platforms. It conforms to GJB599A Series I requirements and is interchangeable with the MS27467T09B98PN designation used in D38999 Series I supply chains.
This T-class plug features a threaded rear for backshell accessories, shell size 09, olive drab cadmium finish (B), insert arrangement 98, pin contacts (P), and normal keying (N). The design supports EMI/RFI shielding, scoop-proof mating, and removable crimp contacts in a compact Series I package.
Product Features
- Conformant to GJB599A Series I (equivalent to D38999 / MS27467 Series I style)
- Interchangeable with cross-reference part number MS27467T09B98PN
- Three-point bayonet quick-coupling for fast, vibration-resistant mating
- Threaded rear (T class) for GJB1784 / M85049 style backshell accessories
- Olive drab cadmium shell finish (B) for corrosion resistance and conductivity
- Pin contact configuration (P) with insert arrangement 98 (typically 3 x #20 contacts)
- Five-key polarization with normal keying (N) for standard anti-mismatch mating
Technical Specifications - JY27467T09B98PN
| Parameter | Value |
|---|---|
| Part Number | JY27467T09B98PN |
| Equivalent Part Number | MS27467T09B98PN |
| Series | GJB599 Series I / D38999 Series I |
| Connector Type | Circular plug (JY27467 / MS27467) |
| Coupling | Bayonet (three-point) |
| Shell Class | T - Threaded rear for accessories |
| Shell Size | 09 |
| Finish | B - Olive drab cadmium plating |
| Insert Arrangement | 98 (typically 3 x #20 contacts) |
| Contact Gender | P - Pin contacts (crimp, removable) |
| Keying / Polarization | N - Normal |
| Overall Diameter D (mm) | 21.4 |
| Length L (mm) | 31.0 |
| Rear Thread | 0.4375-28 UNEF |
| Protection / Sealing | Interface and rear sealing; up to IP65 class environments when properly assembled |
| Compatible Mating | Matching Series I receptacles (JY27466 / JY27656 / JY27468 / JY27496 / JY27505), size 09, arrangement 98, socket contacts, keying N |
Part Number Breakdown
| Segment | Meaning |
|---|---|
| JY | GJB599 circular connector series prefix (MS for D38999 equivalent naming) |
| 27467 | Plug connector style (Series I bayonet plug) |
| T | Threaded rear shell for backshell / cable accessory mounting |
| 09 | Shell size 09 |
| B | Olive drab cadmium finish |
| 98 | Insert arrangement 98 |
| P | Pin contacts |
| N | Normal keying position |
Related options: JY27467T09F98PN uses electroless nickel finish; solder versions use PH contacts; socket versions use S contacts; alternate keying uses A–E (note: keying B and C are typically not available in shell size 09). Confirm contact plating and service rating from the arrangement chart before harness design. There is no functional difference between JY and MS prefixes for form-fit-function mating within the same Series I family.
Compatible Applications
The JY27467T09B98PN circular plug is intended for platforms that require compact, sealed bayonet interconnects with secure mating. Typical use cases include:
- Aircraft and helicopter wiring harnesses
- 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 GJB599 / D38999 Series I interfaces
Selection Guide
| Requirement | Recommended Choice |
|---|---|
| Series I bayonet plug, size 09 / arrangement 98 / pins / keying N | JY27467T09B98PN - this product |
| Same plug with socket contacts | JY27467T09B98SN |
| Same plug with solder pin contacts | JY27467T09B98PHN |
| Matching receptacle with socket contacts | JY27466 / JY27656 / JY27468 (by mounting style), size 09, arrangement 98, S, keying N |
| Cable clamp / EMI backshell accessory | Compatible M85049 / GJB1784 accessory for Series I, shell size 09 |
Installation Notes
- Verify shell size, insert arrangement, contact gender, finish, and keying before mating.
- Use the correct crimp tooling and #20 contact size specified for arrangement 98.
- Keep connector interfaces clean and capped when not in use to protect sealing surfaces.
- Select a matching T-class compatible backshell for the 0.4375-28 UNEF rear thread.
- Apply the recommended coupling engagement and, where required, use anti-loosening methods on accessories such as safety wire or thread-locking compound.
Why Choose JY27467T09B98PN
Form-Fit-Function Compatibility
Choosing JY27467T09B98PN ensures form-fit-function compatibility with MS27467T09B98PN supply chains while meeting GJB599A Series I requirements. The bayonet plug geometry supports fast mating, EMI shielding continuity, and reliable interconnect behind Series I circular connector interfaces in aerospace and industrial systems.
Ordering Information
Order by the GJB599 designation JY27467T09B98PN, or cross-reference as MS27467T09B98PN, depending on your procurement standard. When requesting a quote, please confirm mating receptacle part number, contact plating, cable accessory, and required quantity.
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