Mil-Spec Type Connectors for Military & Defense Equipment

Mil-spec type circular connectors across 38999, 26482, 83723, 5015, Micro-D and GJB 2889.

Circular and Micro-D connector types for military, defense and aerospace equipment, from J599 Series III and YB bayonet designs to HMS31 power connectors, J30J and XC. Send your specification, drawing or part number for configuration and samples.

  • J599 Series III square-flange receptacle, jam-nut receptacle and plugsJ599 Series III
  • YB II 26482-type crimp plug and square-flange receptacleYB II
  • ZH83723 83723-type circular plug and receptacleZH83723
184
insert arrangements (J599 Series III)
3–23 A
26482-type contact current; sizes 20, 16 and 12
5–144
contacts (J30J)
1–62
contacts at 5–40 A (XC)
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Specification type → our series

This overview maps each specification type to the series Xinghua designs and makes in Shenyang, China. Compare coupling, termination, contact count, current and temperature, then send your specification, drawing or part number. We provide the corresponding configuration and samples for your verification. Minimum order quantity is 10 pcs; samples and production orders each take 4–8 weeks.

Specification typeOur seriesSeries note
MIL-DTL-38999 TypeJ599 Series III / J599WR / GJB599J599 Series III has 184 insert arrangements and triple-start threaded coupling; J599WR adds a cadmium-free nickel-PTFE finish; GJB599 covers Series I, II and IV types.
MIL-DTL-26482 TypeYB-I / YB-IIYB-I uses solder contacts and YB-II uses crimp contacts; YB-II L versions operate up to +200 °C.
MIL-C-83723 TypeZH83723ZH83723 provides 65 dB RFI shielding at 100 MHz, with sealed versions operating up to +260 °C.
MIL-DTL-5015 TypeHMS31 / HMS31-K / HMS31-KY / VG31HMS31 uses threaded coupling and contacts up to 150 A; HMS31-K and HMS31-KY use reverse-bayonet coupling; VG31 uses VG 95234 with 5015 insert arrangements.
Micro-D 83513 TypeJ30JJ30J uses gold-plated twist-pin contacts on a 1.27 mm grid, with 5 to 144 contacts.
GJB 2889XCXC uses bayonet coupling and hyperboloid sockets, with 1–62 contacts carrying 5–40 A across 32 layouts.

Mil-spec type series we build

All connector series
J599 Series III square-flange receptacle, jam-nut receptacle and plugs

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
Specifications and datasheet
YB II 26482-type crimp plug and square-flange receptacle

YB II

26482 Series II type · crimp · mates with ZH8525

Coupling
Bayonet
Contact sizes
20, 16, 12 (3–23 A)
Temperature
−55 to +200 °C (L)
Specifications and datasheet
ZH83723 83723-type circular plug and receptacle

ZH83723

83723 type · 65 dB shielding · to +260 °C

Shell sizes
8 to 24
Contact sizes
20, 16, 12 (7.5–23 A)
Temperature
−65 to +200 °C (+260 °C sealed)
Specifications and datasheet
HMS31 MIL-DTL-5015 type threaded plug and square-flange receptacle

HMS31

MIL-DTL-5015 type · threaded · contacts up to 150 A

Coupling
Threaded
Shell sizes
8S to 40
Current rating
13–150 A
Specifications and datasheet
J30J metal-shell Micro-D plug and receptacle with pre-wired leads

J30J

1.27 mm pitch · 5 to 144 contacts · twist-pin contacts

Pitch
1.27 mm
Contacts
5 to 144
Current rating
3 A
Specifications and datasheet
XC bayonet circular plug and receptacle with hyperboloid contacts

XC

GJB 2889 bayonet · hyperboloid sockets · 1–62 contacts · 5–40 A

Coupling
Bayonet, five keys
Contacts
1 to 62
Current
5 / 10 / 20 / 40 A
Specifications and datasheet

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.

CNC machining workshop producing connector shells and contacts
CNC machining workshop
Insulator molding workshop with molding presses
Insulator molding workshop

From sample to production

  1. Send your requirements

    Part number, drawing, pin-out or a short description of your application.

  2. Configuration and quote

    Our engineers match the configuration and reply with a drawing and quotation.

  3. Samples

    Samples are built to order. Third-party testing to your specification is available on request.

  4. Your approval

    You test the samples in your own equipment and approve them.

  5. Series production

    Production follows the approved sample configuration.

Frequently asked questions

Can you match a part number from a military specification?

Send the part number or specification. We provide the corresponding configuration and samples for your verification; for D38999 part numbers, the 38999 page has a lookup to J599 Series III.

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.

Can you build to my drawing or part number?

Yes. Every series can be customized. We make shells, contacts and insulators in our own factory, so we can change a configuration or design a new connector for your equipment.

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.

Send one part number or drawing

We will come back with the matching configuration and a quotation.

Ask for a quotation