MIL-DTL-38999 Series IV breech-coupling box mount receptacle in shell size E (arrangement 17-35, 55 × #22D contacts), Socket (Female) contacts, olive drab cadmium over nickel finish, normal key position.
D38999/42WE35SN
MIL-DTL-38999 Series IV (slash sheet D38999/42)
Box Mount Receptacle (D38999/42)
Breech-Lok quarter-turn coupling — scoop-proof, high-vibration, blind-mate capable
Shell E (size 17)
17-35 — 55 contacts, size #22D
55 contacts
#22D crimp contacts
Socket (Female)
Crimp, rear-release / rear-insertable
Gold, 50 micro-inch minimum on the mating surface
Aluminium alloy
W = cadmium olive drab over nickel (conductive, 500 h salt spray class)
N (normal)
-65 °C to +175 °C
Random vibration to MIL-STD-1344 method 2005, Series IV high-vibration qualification
MIL-STD-1344 method 2004
500 hours
Per MIL-DTL-38999 fluid compatibility table, including Skydrol and jet fuel
500
Environmental (sealed) with interfacial seal and rear grommet
D38999/46 and D38999/47 Series IV plugs
Backshells and strain relief per AS85049, protective covers available
Cadmium plating is not RoHS compliant — exempt defence use; contact sales for alternatives
| Airoadcon | Glenair | Amphenol | Conesys / Souriau | D38999/42WE35SN | Glenair 234-105-42 box mount receptacle equivalent | Amphenol D38999/42E35S equivalent box mount receptacle | Conesys / Souriau 8D Series IV box mount receptacle, shell E equivalent |
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MIL-DTL-38999 Series IV uses a breech (Breech-Lok) quarter-turn coupling instead of the threaded Series III coupling. It is scoop-proof, tolerant of blind mating, and qualified for high-vibration environments — which is why Series IV is specified where a threaded connector would back off or where the mating interface cannot be seen. The D38999/42 slash sheet is the box mount receptacle in the Series IV family and mates with the Series IV plug styles D38999/46 and D38999/47. Cross-reference values above are form, fit and function equivalents, not price comparisons.
Need D38999/42WE35SN?
Cross-brand compatible. Free samples available. 4-week lead time on standard configurations. Email: info@airoadcon.com | Phone: +86-189-9192-7716
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