MIL-DTL 38999 Series – Connector Gaskets

MIL-DTL-38999 (formerly MIL-C-38999) describes four series of miniature, electrical connectors. The connectors are intended for use as follows: Series I connectors are used where a quick disconnect coupling system is required for blind mating or other mating problem areas, and these connectors provide high-vibration characteristics and are suitable for severe wind and moisture problem (SWAMP) areas with proper connector accessories; Series II connectors are used where the connector is not subjected to high vibration or SWAMP areas and where space or weight is at a premium due to their lower profile; Series III connectors are suitable for blind mating areas, and provide high-vibration characteristics at elevated temperature and are suitable for SWAMP areas with the proper connector accessories; and Series IV connectors are used where a quick disconnect coupling system is required for blind mating or other mating problem areas, and these connectors provide high-vibration characteristics and are suitable for SWAMP areas with the proper connector accessories.

Please view Table #1 below for available part numbers to purchase.

Figure #1 Design Data

Dimensional Characteristics and Data

EMI/RFI Shielding Connector Gasket – This figure shows an outline drawing of the typical connector gasket.
Connector gasket thickness for all parts listed is .032″
Dimension “E” displays oval slots were applicable on table #1

Table #1 Products – click on links below to navigate to the purchase page

Shell Size	MIL-DTL-38999				Dimensions					MAJR Part Numbers Material Options
Shell Size	SERIES

	I	II	III	IV	A	B	C	D	E	Ni/Graphite ……….Silicone…….	Ag/Al ……….Silicone……..
6					0.469	0.375	0.738	0.141	0.141	2050-60601-52	2050-60601-63
8		√			0.594	0.630	0.840	0.135		2050-60802-52	2050-60802-63
					0.594	0.568	0.812	0.125		2050-60803-52	2050-60803-63
					0.594	0.500	0.875	0.156		2050-60804-52	2050-60804-63
9	√				0.719	0.750	0.965	0.135		2050-60903-52	2050-60903-63
			√		0.719	0.750	0.965	0.135	0.222	2050-60904-52	2050-60904-63
10		√			0.719	0.750	0.965	0.135		2050-61003-52	2050-61003-63
					0.719	0.680	0.937	0.125		2050-61004-52	2050-61004-63
					0.719	0.625	1.000	0.156		2050-61005-52	2050-61005-63
11	√			√	0.812	0.875	1.060	0.141		2050-61101-52	2050-61101-63
			√		0.812	0.875	1.060	0.141	0.206	2050-61103-52	2050-61103-63
12		√			0.812	0.875	1.060	0.141		2050-61202-52	2050-61202-63
					0.813	0.750	1.094	0.156		2050-61203-52	2050-61203-63
13	√			√	0.906	1.005	1.153	0.135		2050-61305-52	2050-61305-63
			√		0.906	1.000	1.156	0.141	0.206	2050-61306-52	2050-61306-63
14		√			0.906	1.005	1.153	0.135		2050-61401-52	2050-61401-63
					0.906	0.938	1.125	0.125		2050-61402-52	2050-61402-63
					0.906	0.875	1.188	0.156		2050-61403-52	2050-61403-63
15	√			√	0.969	1.135	1.258	0.156		2050-61501-52	2050-61501-63
			√		0.969	1.135	1.258	0.156	0.206	2050-61503-52	2050-61503-63
16		√			0.969	1.135	1.258	0.156		2050-61602-52	2050-61602-63
					0.969	1.063	1.250	0.125		2050-61603-52	2050-61603-63
					0.969	1.000	1.281	0.156		2050-61604-52	2050-61604-63
17	√			√	1.062	1.260	1.351	0.156		2050-61701-52	2050-61701-63
			√		1.062	1.260	1.351	0.156	0.222	2050-61703-52	2050-61703-63
18		√			1.062	1.260	1.351	0.156		2050-61801-52	2050-61801-63
					1.062	1.189	1.343	0.125		2050-61802-52	2050-61802-63
					1.062	1.135	1.375	0.156		2050-61803-52	2050-61803-63
19	√			√	1.156	1.375	1.500	0.141		2050-61901-52	2050-61901-63
			√		1.156	1.375	1.500	0.141	0.206	2050-61903-52	2050-61903-63
20					1.156	1.375	1.500	0.141		2050-62002-52	2050-62002-63
		√			1.156	1.312	1.467	0.125		2050-62003-52	2050-62003-63
					1.156	1.250	1.500	0.172		2050-62004-52	2050-62004-63
21	√			√	1.250	1.500	1.625	0.141		2050-62101-52	2050-62101-63
			√		1.250	1.500	1.625	0.141	0.206	2050-62103-52	2050-62103-63
22		√			1.250	1.500	1.625	0.141		2050-62202-52	2050-62202-63
					1.250	1.437	1.562	0.125		2050-62203-52	2050-62203-63
					1.250	1.375	1.625	0.172		2050-62201-52	2050-62201-63
23	√			√	1.375	1.625	1.750	0.172		2050-62301-52	2050-62301-63
			√		1.375	1.625	1.750	0.172	0.259	2050-62303-52	2050-62303-63
24		√			1.375	1.625	1.750	0.172		2050-62402-52	2050-62402-63
					1.375	1.563	1.703	0.152		2050-62403-52	2050-62403-63
					1.375	1.500	1.750	0.203		2050-62401-52	2050-62401-63
25	√			√	1.500	1.750	1.875	0.172		2050-62502-52	2050-62502-63
			√		1.500	1.750	1.875	0.172	0.259	2050-62503-52	2050-62503-63
28					1.562	1.750	2.000	0.203		2050-62801-52	2050-62801-63
29					1.568	2.000	2.171	0.172	0.195	2050-62901-52	2050-62901-63
32					1.750	2.000	2.250	0.219		2050-63201-52	2050-63201-63
33					1.734	2.187	2.356	0.203	0.234	2050-63301-52	2050-63301-63
36					1.938	2.250	2.500	0.219		2050-63601-52	2050-63601-63
40					2.188	2.500	2.750	0.219		2050-64001-52	2050-64001-63
44					2.375	2.781	3.000	0.219		2050-64401-52	2050-64401-63
48					2.625	3.031	3.250	0.219		2050-64801-52	2050-64801-63

Material

Please click on the data sheet links below to find out more information about our Military and Commercial grade materials.

(-52) Commercial Grade Ni/Graphite (-63) Military Grade Ag/Al

For this series our -63 Military Grade material meets MIL-DTL-83528 type B. -52 Commercial Grade is available but is NOT a MIL-DTL-83528 qualified material