RF Multipin Connectors / Shells/Backparts

MIL-DTL-38999 Series I Shells

MIL-DTL-38999 Series I / Straight Plug Dimensions
Shell Size	A max. inch (mm)	G Dia. max. inch (mm)	J Dia. max. inch (mm)	L max. inch (mm)	Thread
13	0.866 (22.00)	1.156 (29.36)	0.760 (19.30)	1.234 (31.34)	11/16-24UNEF-2A
21	1.347 (34.21)	1.641 (41.68)	1.240 (31.50)	1.234 (31.34)	1-3/16-18UNEF-2A
25	1.597 (40.56)	1.891 (48.03)	1.490 (37.85)	1.234 (31.34)	1-7/16-18UNEF-2A

MIL-DTL-38999 Series I / Bulkhead Feedthrough Jack Dimensions
Shell Size	A Dia. max. inch (mm)	D max. inch (mm)	H max. inch (mm)	J Dia. max. inch (mm)	S Dia. max. inch (mm)	T Thread	U Hex. ax. inch (mm)	V Thread
13	0.851 (21.62)	0.942 (23.93)	0.120 (3.05)	0.960 (24.38)	1.516 (35.51)	11/16-24UNEF-2A	1.205 (30.61)	1-20UNEF-2A
21	1.333 (33.86)	1.441 (36.60)	0.151 (3.84)	1.442 (36.63)	2.078 (52.78)	1-3/16-18UNEF-2A	1.705 (43.31)	1-1/2-18UNEF-2A
25	1.583 (40.21)	1.691 (42.95)	0.151 (3.84)	1.692 (42.98)	2.328 (59.13)	1-7/16-18UNEF-2A	2.017 (51.23)	1-3/4-18UNS-2A

MIL-DTL-38999 Series I / Wall Mounting Receptacle (Back Panel) Dimensions
Shell Size	A Dia. max. inch (mm)	D max. inch (mm)	H max. inch (mm)	J Dia. max. inch (mm)	S Dia. max. inch (mm)	T Thread	U Hex. ax. inch (mm)	V Thread
13	0.851 (21.62)	0.942 (23.93)	0.120 (3.05)	0.960 (24.38)	1.516 (35.51)	11/16-24UNEF-2A	1.205 (30.61)	1-20UNEF-2A
21	1.333 (33.86)	1.441 (36.60)	0.151 (3.84)	1.442 (36.63)	2.078 (52.78)	1-3/16-18UNEF-2A	1.705 (43.31)	1-1/2-18UNEF-2A
25	1.583 (40.21)	1.691 (42.95)	0.151 (3.84)	1.692 (42.98)	2.328 (59.13)	1-7/16-18UNEF-2A	2.017 (51.23)	1-3/4-18UNS-2A

CIRCULAR MULTIPIN BACKPARTS for SHELL SIZE 21

Straight back body with clamps
Standard back body Part Number	Material and surface treatment
BPTQ-2101-07	Aluminum, black anodized
BPTQ-2101-15	Aluminum, nickel-plated

Short back body
Standard back body Part Number	Material and surface treatment
BPTQ-2103-07	Aluminum, black anodized
BPTQ-2103-15	Aluminum, nickel-plated

Extender back body
Standard back body Part Number	Material and surface treatment
BPTQ-2102-07	Aluminum, black anodized
BPTQ-2102-15	Aluminum, nickel-plated

Right angle back body
Standard back body Part Number	Material and surface treatment
BPTQ-2104-07	Aluminum, black anodized
BPTQ-2104-15	Aluminum, nickel-plated

CIRCULAR MULTIPIN BACKPARTS for SHELL SIZE 25

Straight back body with clamps
Standard back body Part Number	Material and surface treatment
BPTQ-2501-07	Aluminum, black anodized
BPTQ-2501-15	Aluminum, nickel-plated

Short back body
Standard back body Part Number	Material and surface treatment
BPTQ-2503-07	Aluminum, black anodized
BPTQ-2503-15	Aluminum, nickel-plated

Extender back body
Standard back body Part Number	Material and surface treatment
BPTQ-2502-07	Aluminum, black anodized
BPTQ-2502-15	Aluminum, nickel-plated

Right angle back body
Standard back body Part Number	Material and surface treatment
BPTQ-2504-07	Aluminum, black anodized
BPTQ-2504-15	Aluminum, nickel-plated