J599 Series III
38999 Series III type · shell sizes 9–25 · 184 insert arrangements
- Coupling
- Triple-start thread
- Shell sizes
- 9 to 25
- Insert arrangements
- 184
MIL-DTL-38999 Type Circular Connectors, Series I–IV
D38999 part number? See the matching J599 configuration and request samples.
J599 and GJB599 circular connectors of the MIL-DTL-38999 type, in Series I–IV couplings. Send your D38999 part number; we build the matching J599 configuration and provide samples for your mating verification.
- 184
- insert arrangements (J599 Series III)
- 9–25
- shell sizes (J599 Series III)
- 2–33 A
- contact current (38999 type)
- −65 to +200 °C
- operating temperature (38999 type)
Prefer email? sales@sinoxh.com
Working from a D38999 part number
J599 Series III part numbers use the same segments as D38999 Series III part numbers, so a D38999 number maps directly onto our numbering: D38999/26WB35SN corresponds to J599/26WB35SN. Enter the part number to see the matching J599 configuration. We provide the corresponding configuration and samples for your mating verification.
| D38999 slash number | J599 type | Connector |
|---|---|---|
| D38999/20 | J599/20 | Square-flange receptacle |
| D38999/24 | J599/24 | Jam-nut receptacle |
| D38999/26 | J599/26 | Plug |
| D38999/21, /23, /25, /27 | J599/21, /23, /25, /27 | Hermetic receptacle: square flange, jam nut, solder mount, weld mount |
38999-type series we build
All 38999-type connectorsJ599WR
Cadmium-free nickel-PTFE finish · marine-grade · up to 5000 mating cycles
- Coupling
- Triple-start thread
- Shell sizes
- 9 to 25
- Insert arrangements
- 105
GJB599 Series I
38999 Series I type · bayonet coupling · 127 insert arrangements
- Coupling
- Bayonet
- Shell sizes
- 9 to 25
- Insert arrangements
- 127
GJB599 Series II
38999 Series II type · low-profile bayonet · 96 insert arrangements
- Coupling
- Bayonet, low profile
- Shell sizes
- 8 to 24
- Insert arrangements
- 96
GJB599 Series IV
38999 Series IV type · 90° quarter-turn coupling · shell sizes 11–25
- Coupling
- Quarter-turn (90°)
- Shell sizes
- 11 to 25
- Insert arrangements
- 123
J599FS
IP67 with J1784FS backshell · threaded 38999 type · rain-tested
- Coupling
- Triple-start thread
- Shell sizes
- 9 to 25
- Insert arrangements
- 32
Why buyers source from our factory
Our own factory since 1957
Shells, contacts and insulators are machined, molded and plated in-house in Shenyang, China.
Built to your requirement
Contact counts, cable lengths, materials and finishes can be customized, or we design a new connector for your equipment.
Samples before production
Samples are built to order for your own testing. Third-party testing is available on request.
B2B and wholesale
We supply OEMs and distributors directly from the factory, with full specifications for every series online.
From sample to production
Send your requirements
Part number, drawing, pin-out or a short description of your application.
Configuration and quote
Our engineers match the configuration and reply with a drawing and quotation.
Samples
Samples are built to order. Third-party testing to your specification is available on request.
Your approval
You test the samples in your own equipment and approve them.
Series production
Production follows the approved sample configuration.
Frequently asked questions
Can you match my D38999 part number?
Paste it into the lookup on this page to see the corresponding J599 Series III configuration. We provide samples for your mating verification.
Which couplings do you make?
All four: bayonet (Series I type), low-profile bayonet (Series II type), triple-start thread (Series III type) and quarter-turn (Series IV type).
Do you supply distributors and OEMs?
Yes. We supply OEMs and distributors on a B2B and wholesale basis, directly from our factory in Shenyang, China.
Can I get samples first?
Yes. Samples are built to order so you can verify them before series production. Third-party testing is available on request.
What are your MOQ and lead times for samples and production?
The minimum order quantity is 10 pcs. Samples take 4–8 weeks, and production orders take 4–8 weeks. Send your drawing or part number; we will acknowledge your inquiry by email within 1 business day.
Send one part number or drawing
We will come back with the matching configuration and a quotation.