79× #22D · Insert G-35 · Shell 21 (G) · Hermetic, ≤ 1×10⁻¹⁰ cc He/s · MPN D38999/27YG35SN
MIL-DTL-38999 Series III
MIL-DTL-38999/27
Hermetic weld mount receptacle
G-35
21 (G)
79× #22D
Socket (solder cup)
CRES stainless steel
Class Y — passivated CRES (stainless), conductive finish
Glass-fused, hermetic
1 × 10⁻¹⁰ cc He/second max.
Tri-Start thread, self-locking
Solder cup / eyelet / PCB feed-through
Weld mount
-65 °C to +200 °C
500 mating cycles
400 VAC / 500 VDC
5 A per #22D contact
Not permitted (low-profile)
| Airoadcon | Amphenol | Conesys / Aero | Glenair |
|---|---|---|---|
| J599/27YG35SN | D38999/27YG35SN | AE821/221 (hermetic) | 233-100-H2 / 233-003 |
Hermetic hermetic weld mount receptacles are specified where the connector body must hold vacuum or pressure in addition to carrying signal: airborne sensor pods, IR and EO gimbal electronics, fuel and hydraulic pressure bulkheads, satellite bus panels and instrument housings. The glass-fused insert gives a hermetically sealed interface capable of <1×10⁻¹⁰ cc He/s helium leak rate, and the connector mates with any standard MIL-DTL-38999 Series III plug of the same shell size and insert arrangement.
Need D38999/27YG35SN?
Airoadcon builds the cross-brand equivalent — free samples, 4-week lead time. MIL-SPEC qualified, full test reports on request.
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