MIL-DTL-38999 Series III · catalog configuration
8D7-21W75SN251
8D7-21W75SN251 is an 8D Series III style jam-nut receptacle configuration. The ordering reference uses shell21, layout75 and specification251, with four size8 power-contact positions.
Product number 8D7-21W75SN251
- Series
- Series III
- Shell / insert
- 21 / 75
- Contact positions
- 4 positions; 4×8 power
- Material / finish
- Aluminum alloy; olive drab cadmium
Description
8D7-21W75SN251 is an 8D Series III style jam-nut receptacle configuration. The ordering reference uses shell21, layout75 and specification251, with four size8 power-contact positions. Use the complete supplier configuration and controlled drawing to confirm the offered unit.
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; Jam-nut receptacle |
|---|---|
| Shell size / insert arrangement | 21 / 75 |
| Contact quantity and size mix | 4 positions; 4×8 power |
| Coupling | Triple-start threaded |
| Contact / termination | S (crimp socket; 251 power-contact configuration) |
| Keying / option | N (normal keying) |
| 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 contact layout is listed for 8D7-21W75SN251?
The 8D ordering reference lists21-75 with specification251 as four size8 power-contact positions.
What does the shell-style code describe for 8D7-21W75SN251?
This is a jam-nut receptacle in shell 21. Compare the panel opening, panel thickness, sealing arrangement and nut access against the controlled installation drawing.
How should a mating half be checked for 8D7-21W75SN251?
Match shell21, layout75, normal keyingN and complementary power-contact configuration using the complete manufacturer drawings.
What should an RFQ include for 8D7-21W75SN251?
Include 8D7-21W75SN251, quantity, mating-half code, mounting drawing, contact supply and required documents.
Similar Products
Compare adjacent catalog configurations and confirm mating, keying and rear interface by drawing.
8D7-21W75SN251 · RFQ
Send the exact drawing and mating requirement
Include the mating part, cable or panel details, quantity and documentation required for your project.