
MIL-DTL-38999 Series III · catalog configuration
D38999/26WJ20SN
D38999/26WJ20SN is a MIL-DTL-38999 Series III straight plug. The catalog configuration uses shell size J (25), insert arrangement 20, with 30 contact positions (10×20, 13×16, 4×12 coax, 3×8 twinax).
Product number D38999/26WJ20SN
- Series
- Series III
- Shell / insert
- J (25) / 20
- Contact positions
- 30 positions; 10×20, 13×16, 4×12 coax, 3×8 twinax
- Material / finish
- Aluminum alloy; olive drab cadmium
Description
D38999/26WJ20SN is a MIL-DTL-38999 Series III straight plug. The catalog configuration uses shell size J (25), insert arrangement 20, with 30 contact positions (10×20, 13×16, 4×12 coax, 3×8 twinax). The listed coupling is Triple-start threaded, self-locking; shell material and finish are Aluminum alloy; olive drab cadmium. Match the full configuration with the offered unit and controlled drawing.
Configuration checklist
- Match the full ordering code and insert face to the supplied drawing.
- Confirm the mating half, contact gender, key position and coupling interface.
- Check shell style, rear configuration, cable exit and any accessory interface.
- Request the documents required for the offered unit; catalog values are not unit test results.
Technical Data
Ordering-code and insert data are catalog references. Electrical, environmental and mating-life values shown as catalog or family figures do not certify the supplied unit. Confirm the exact configuration and required evidence against its controlled drawing.
| Series and shell style | MIL-DTL-38999 Series III; Straight plug |
|---|---|
| Shell size / insert arrangement | J (25) / 20 |
| Contact quantity and size mix | 30 positions; 10×20, 13×16, 4×12 coax, 3×8 twinax |
| Coupling | Triple-start threaded, self-locking |
| Contact / termination | S (crimp socket) |
| Keying / option | N |
| Shell material and finish | Aluminum alloy; olive drab cadmium |
Applications
These are selection and sourcing contexts for the listed catalog configuration. Suitability depends on the equipment interface, operating conditions and supplied-item documentation.
Buyer Q&A
Which shell and insert configuration is listed for D38999/26WJ20SN?
The catalog lists shell J (25), insert 20 and 30 positions with 10×20, 13×16, 4×12 coax, 3×8 twinax. Position count describes the insert; it does not prove supplied contact population.
What mounting information matters for D38999/26WJ20SN?
The listed configuration is a straight plug. Check coupling clearance, rear termination space and the complete mating-half drawing for shell J (25); confirm any backshell interface with the selected accessory drawing.
How should a mating half be checked for D38999/26WJ20SN?
Check MIL-DTL-38999 Series III, shell J (25), insert 20 and keying N. Compare complete controlled drawings and complementary contact configurations.
What should an RFQ for D38999/26WJ20SN include?
Send D38999/26WJ20SN, quantity, the mating-half code, mounting or harness drawing, contact supply and termination requirements, and required documents.
Similar Products
Compare adjacent catalog configurations and confirm mating, keying and rear interface by drawing.
D38999/26WJ20SN · RFQ
Send the exact drawing and mating requirement
Include the mating part, cable or panel details, quantity and documentation required for your project.



