Section B
The Full Range of MIL-DTL-38999 Series I, II, III and IV Hermetic Receptacles—Plus Glenair Commercial Equivalents
The MIL-DTL-38999 Series I, II, III and IV family of hermetic connectors are ideal for high-pressure/low-leakage applications in air, sea and space environments. Glenair is on the Qualified Product List (QPL) for all configurations of MIL-DTL-38999 Series I through IV pin and socket hermetic connectors. We also offer our D38999 type commercial part numbers for applications that do not require MS qualified products.
Because Glenair makes all its hermetic connectors in-house, including the machining of shells, molding of interfacial seals and firing of hermetic components, we can offer you outstanding availability on stock products and fast turnaround on special orders.
- Product Features
- Insert Arrangements
- Layouts and Pin Counts
- Material Specifications and Finishes
- Alternate Key Positions
![]() |
MS27469 / 231-100-H0Wall Mount Hermetic Receptacle, Series I |
![]() |
MS27470 / 231-100-H7Jam Nut Mount Hermetic Receptacle, Series I |
![]() |
MS27471 / 231-100-H5Solder Mount Hermetic Receptacle, Series I |
![]() |
231-103-H7Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series I |
![]() |
257-255Jam Nut Mount Hermetic Receptacle, Series I |
![]() |
MS27475Wall Mount Hermetic Receptacle, Series II |
![]() |
MS27476Box Mount Hermetic Receptacle MIL-DTL-38999 Series II |
![]() |
MS27477Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series II |
![]() |
MS27478Solder Mount Hermetic Receptacle MIL-DTL-38999 Series II |
![]() |
232-103-H7Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series II |
![]() |
947-120Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series II |
![]() |
D38999/21 / 233-100-H2Box Mount Hermetic Receptacle, Series III |
![]() |
D38999/23 / 233-100-H7Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series III |
![]() |
D38999/25 / 233-100-H5Solder Mount Hermetic Receptacle MIL-DTL-38999 Series III |
![]() |
D38999/27 / 233-100-H8Weld Mount Hermetic Receptacle MIL-DTL-38999 Series III |
![]() |
233-103-H7Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series III |
![]() |
233-103-H9Jam Nut Mount Hermetic Plug/Receptacle Bulkhead Feed-Thru, Series III |
![]() |
257-093Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series III |
![]() |
257-215Jam Nut Mount Hermetic Bulkhead Feed-Thru w/ Crimp Removable Contacts, Series III |
![]() |
257-216Jam Nut Mount Hermetic Bulkhead Feed-Thru w/ Crimp Removable Contacts, Series III |
![]() |
257-288Box Mount Hermetic Bulkhead Feed-Thru w/ Crimp Removable Contacts, Series III |
![]() |
257-333Hermetic Jam Nut Receptacle w/ Crimp Removable Contacts, Series III |
![]() |
257-121Special Jam Nut Mount Hermetic ReceptacleMIL-DTL-38999 Series III Type (D38999/23) with Accessory Threads |
![]() |
947-082Jam Nut Hermetic Bulkhead Feed-Thru, Series III |
![]() |
947-115Jam Nut Hermetic Bulkhead Feed-Thru, Series III |
![]() |
947-282Flange Mount Hermetic Bulkhead Feed-Thru, Series III |
947-278Jam Nut Mount Hermetic Bulkhead Feed-ThruMIL-DTL-38999 Series II Type (MS27477Y) |
|
![]() |
D38999/41 / 234-100-H2Box Mount Hermetic Receptacle MIL-DTL-38999 Series IV |
![]() |
D38999/43 / 234-100-H7Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series IV |
![]() |
D38999/45 / 234-100-H5Solder Mount Hermetic Receptacle MIL-DTL-38999 Series IV |
![]() |
D38999/48 / 234-100-H8Weld Mount Hermetic Receptacle MIL-DTL-38999 Series IV |
![]() |
237-280Special Weld Mount Hermetic ReceptacleMIL-DTL-38999 Series II Type (Similar to MS27478Y Series II) |































