MIL-DTL-38999 Connectors Series I & II, Circular Connectors, Bayonet Coupled, -65°C to +200°C  Part Number Ordering Information:

MS27XXX	X	X	X	XX	X	X
Military  Specification Number	Class	Shell Size	Finish	Arrangement Number	Contact Type	Insert Polarization

 

MILITARY SPECIFICATION NUMBER AND STYLE
Series I  Scoop-Proof	Series II Low Silhouette	Style Description
MS27466	MS27472	Receptacle, Wall Mount Flange
MS27468	MS27474	Receptacle, Jam Nut Mount
MS27656	MS27497	Receptacle, Wall Mount, Back Panel Mount
--	MS27508	Receptacle, Box Mount, Back Panel Mount
--	MS27473	Plug
MS27467	MS27484	Plug with RFI Grounding Fingers
MS27470	MS27477	Receptacle, Jam Nut Mount, Hermetic
MS27471	MS27478	Receptacle, Solder Mount, Hermetic

 

CLASS DESCRIPTION		CONTACT TYPE		INSERT POLARIZATION
T = Environmental   Without Backshell		P = Pin		Blank = Normal
E = Environmental Resisting   (MS27508 Only)		S = Socket		A, B, C, D =   Alternate Positions
Y = Hermetic		Y = Hermetic Pins with Eyelet
		Z = Hermetic Sockets with Eyelet

 

FINISH (Preferred)

Class T, E

F = Electroless Nickel

Class Y

D = Tin (150°C)

E = Passivated Stainless Steel

 

INSERT ARRANGEMENT
Designation  (First Digit Designates Shell Size/Subsequent Digits Desginate Contact Arrangement)		No. of Contacts  (By Contact Size)
Series I	Series II	22D	20	16	12
Shell Sizes 8 and 9 (Click to See Insert Arrangements)
9-35	8-35	6	-	-	-
9-98	8-98	-	3	-	-
Shell Sizes 10 and 11 (Click to See Insert Arrangements)
11-4	--	-	4	-	-
11-5	10-5	-	5	-	-
11-35	10-35	13	-	-	-
11-98	10-98	-	6	-	-
11-99	10-99	-	7	-	-
Shell Sizes 12 and 13 (Click to See Insert Arrangements)
--	12-3	-	-	3	-
13-4	12-4	-	-	4	-
13-8	12-8	-	8	-	-
13-35	12-35	22	-	-	-
13-98	12-98	-	10	-	-
Shell Sizes 14 and 15 (Click to See Insert Arrangements)
15-5	14-5	-	-	5	-
15-15	14-15	-	14	1	-
15-18	14-18	-	18	-	-
15-19	--	-	19	-	-
15-35	14-35	37	-	-	-
15-97	14-97	-	8	4	-
Shell Sizes 16 and 17 (Click to See Insert Arrangments)
17-6	16-6	-	-	-	6
17-8	16-8	-	-	8	-
17-26	16-26	-	26	-	-
17-35	16-35	55	-	-	-
17-99	16-99	-	21	2	-
Shell Sizes 18 and 19 (Click to See Insert Arrangements)
19-11	18-11	-	-	11	-
--	18-28	-	26	2	-
--	18-30	-	29	1	-
19-32	18-32	-	32	-	-
19-35	18-35	66	-	-	-
--	18-96	-	-	-	9
Shell Sizes 20 and 21 (Click to See Insert Arrangements)
21-11	--	-	-	-	11
21-16	20-16	-	-	16	-
21-35	20-35	79	-	-	-
21-39	20-39	-	37	2	-
21-41	20-41	-	41	-	-
Shell Sizes 22 and 23 (Click to See Insert Arrangments)
23-21	22-21	-	-	21	-
--	22-32	-	32	-	-
23-35	22-35	100	-	-	-
23-53	--	-	53	-	-
23-55	22-55	-	55	-	-
Shell Sizes 24 and 25 (Click to See Insert Arrangements)
25-4	24-4	-	48	8	-
25-19	24-19	-	-	-	19
25-24	24-24	-	-	12	12
25-29	24-29	-	-	29	-
25-35	24-35	128	-	-	-
25-43	--	-	23	20	-
25-61	24-61	-	61	-	-