MIL-DTL-38999 Series III
 
 

The MIL-DTL-38999 Series III connectors have the triple start threaded coupling mechanism that offers greater vibration protection. Series III also has metric accessory threads for greater strength and backshell support. These environmental resistant connectors are 100 percent scoop proof. Series III is available in nine shell sizes with two receptacle configurations and a standard plug. Series III has 55 insert arrangements using 3 to 128 contacts. Contacts 22D, 20, 16, 12 gauge terminate wire gauge sizes 28 through 12. The hard plastic socket interface features the chamfered conical entry that aids in proper contact mating. The fluorosilicone interfacial seal has conical risers around each pin contact that compress into the socket interface assuring the seal of mating surfaces. Three finishes are available for the aluminium shell.

MATING THREADS

SHELL SIZE	MS SHELL CODE	MATING THREAD
9	A	.6250-0.P-0.3L
11	B	.7500-0.P-0.3L
13	C	.8750-0.1P-0.3L
15	D	1.0000-0.1P-0.3L
17	E	1.875-0.1P-0.3L
19	F	1.2500-0.1P-0.3L
21	G	1.3750-0.1P-0.3L
23	H	1.5000-0.1P-0.3L
25	J	1.6250-0.1P-0.3L

ACCESSORY THREADS

SHELL SIZE	MS SHELL CODE	ACCESSORY THREAD	TEETH NUMBER
9	A	M12 x 1-6g	12
11	B	M15 x 1-6g	16
13	C	M18 x 1-6g	20
15	D	M22 x 1-6g	24
17	E	M25 x 1-6g	28
19	F	M28 x 1-6g	32
21	G	M31 x 1-6g	36
23	H	M34 x 1-6g	40
25	J	M37 x 1-6g	44

Series III Polarization & Shell Keying
Series III Panel Cut-Out Dimensions
Series III Strain Reliefs
D38999/20 Series III Wall Mount Flange Receptacle
D38999/24 Series III Jam Nut Mount Receptacle
D38999/26 Series III RFI Grounding Plug

For pricing and availability, please fill out our RFQ form

If you need any other information, please aecs@aecsinc.com
phone (703) 425-3815  fax (703) 425-3814  

We look forward to hearing from you!

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