22× #22D · Insert C-35 · Shell 13 (C) · Hermetic, ≤ 1×10⁻¹⁰ cc He/s · MPN D38999/21YC35SN
MIL-DTL-38999 Series III
MIL-DTL-38999/21
Hermetic box mount receptacle
C-35
13 (C)
22× #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
Box mount, low profile
-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 |
|---|---|---|---|
| J599/21YC35SN | D38999/21YC35SN | AE821/221 (hermetic) | 233-100-H2 / 233-003 |
Hermetic hermetic box 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 D38999/21YC35SN?
Airoadcon builds the cross-brand equivalent — free samples, 4-week lead time. MIL-SPEC qualified, full test reports on request.
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