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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-H0 Wall Mount Hermetic Receptacle, Series I
	MS27470 / 231-100-H7 Jam Nut Mount Hermetic Receptacle, Series I
	MS27471 / 231-100-H5 Solder Mount Hermetic Receptacle, Series I
	231-103-H7 Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series I
	257-255 Jam Nut Mount Hermetic Receptacle, Series I
	MS27475 Wall Mount Hermetic Receptacle, Series II
	MS27476 Box Mount Hermetic Receptacle MIL-DTL-38999 Series II
	MS27477 Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series II
	MS27478 Solder Mount Hermetic Receptacle MIL-DTL-38999 Series II
	232-103-H7 Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series II
	947-120 Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series II
	D38999/21 / 233-100-H2 Box Mount Hermetic Receptacle, Series III
	D38999/23 / 233-100-H7 Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series III
	D38999/25 / 233-100-H5 Solder Mount Hermetic Receptacle MIL-DTL-38999 Series III
	D38999/27 / 233-100-H8 Weld Mount Hermetic Receptacle MIL-DTL-38999 Series III
	233-103-H7 Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series III
	233-103-H9 Jam Nut Mount Hermetic Plug/Receptacle Bulkhead Feed-Thru, Series III
	257-093 Jam Nut Mount Hermetic Bulkhead Feed-Thru, Series III
	257-215 Jam Nut Mount Hermetic Bulkhead Feed-Thru w/ Crimp Removable Contacts, Series III
	257-216 Jam Nut Mount Hermetic Bulkhead Feed-Thru w/ Crimp Removable Contacts, Series III
	257-288 Box Mount Hermetic Bulkhead Feed-Thru w/ Crimp Removable Contacts, Series III
	257-333 Hermetic Jam Nut Receptacle w/ Crimp Removable Contacts, Series III
	257-121 Special Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series III Type (D38999/23) with Accessory Threads
	947-082 Jam Nut Hermetic Bulkhead Feed-Thru, Series III
	947-115 Jam Nut Hermetic Bulkhead Feed-Thru, Series III
	947-282 Flange Mount Hermetic Bulkhead Feed-Thru, Series III
	947-278 Jam Nut Mount Hermetic Bulkhead Feed-Thru MIL-DTL-38999 Series II Type (MS27477Y)
	D38999/41 / 234-100-H2 Box Mount Hermetic Receptacle MIL-DTL-38999 Series IV
	D38999/43 / 234-100-H7 Jam Nut Mount Hermetic Receptacle MIL-DTL-38999 Series IV
	D38999/45 / 234-100-H5 Solder Mount Hermetic Receptacle MIL-DTL-38999 Series IV
	D38999/48 / 234-100-H8 Weld Mount Hermetic Receptacle MIL-DTL-38999 Series IV
	237-280 Special Weld Mount Hermetic Receptacle MIL-DTL-38999 Series II Type (Similar to MS27478Y Series II)