Circular MIL Spec Backshells

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Single Arm Composite Backshells

SUNBANK Single Arm Composite Backshells are designed to mate with MIL-DTL-38999 I, II, III, and IV connectors and incorporate self-locking coupling. The self-locking feature of these SUNBANK backshells withstands high vibrations. Single Arm Backshells comprise lightweight, aerospace-grade composite materials up to 40% lighter than aluminum. The backshells are available with electroless nickel plating, meeting the requirements of AS85049 and RoHS/REACH compliance. A Ground Lug option allows soldering directly to the body.

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Part #

Circular MIL Spec Backshells Natural Straight Adapter Assembly

09F7S721XB17
Sunbank / Souriau
1: NT$2,933.61
3In Stock

Mfr. Part #
09F7S721XB17

Mouser Part #
649-09F7S721XB17

Sunbank / Souriau

Circular MIL Spec Backshells Natural Straight Adapter Assembly

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Datasheet

3In Stock

NT$2,933.61

NT$2,607.73

NT$2,507.35

NT$2,423.46

NT$2,289.74

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN15G
Sunbank / Souriau
1: NT$7,144.19
24In Stock

Mfr. Part #
09F7R721XN15G

Mouser Part #
649-09F7R721XN15G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

24In Stock

NT$7,144.19

NT$6,168.35

NT$5,949.31

NT$5,904.85

View

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN17G
Sunbank / Souriau
1: NT$13,592.53
23In Stock

Mfr. Part #
09F7R721XN17G

Mouser Part #
649-09F7R721XN17G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

23In Stock

NT$13,592.53

NT$12,363.59

NT$11,920.13

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated Straight Adapter Assembly

09F7S721XN17G
Sunbank / Souriau
1: NT$13,575.68
22In Stock

Mfr. Part #
09F7S721XN17G

Mouser Part #
649-09F7S721XN17G

Sunbank / Souriau

Circular MIL Spec Backshells Plated Straight Adapter Assembly

Learn More

Datasheet

22In Stock

NT$13,575.68

NT$12,348.53

NT$11,905.79

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN11G
Sunbank / Souriau
1: NT$13,467.77
24In Stock

Mfr. Part #
09F7R721XN11G

Mouser Part #
649-09F7R721XN11G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

24In Stock

NT$13,467.77

NT$12,250.30

NT$11,811.14

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Black Straight Adapter Assembly

09F7S721XM13
Sunbank / Souriau
1: NT$4,285.87
22In Stock

Mfr. Part #
09F7S721XM13

Mouser Part #
649-09F7S721XM13

Sunbank / Souriau

Circular MIL Spec Backshells Black Straight Adapter Assembly

Learn More

Datasheet

22In Stock

NT$4,285.87

NT$3,908.37

NT$3,758.16

NT$3,632.68

NT$3,431.92

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Plated Straight Adapter Assembly

09F7S721XN11G
Sunbank / Souriau
1: NT$13,578.55
24In Stock

Mfr. Part #
09F7S721XN11G

Mouser Part #
649-09F7S721XN11G

Sunbank / Souriau

Circular MIL Spec Backshells Plated Straight Adapter Assembly

Learn More

Datasheet

24In Stock

NT$13,578.55

NT$12,351.04

NT$11,907.94

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Black 90degree Adapter Assembly

09F7R721XM11
Sunbank / Souriau
1: NT$2,956.19
22In Stock
Factory Special Order

Mfr. Part #
09F7R721XM11

Mouser Part #
649-09F7R721XM11

Factory Special Order

Sunbank / Souriau

Circular MIL Spec Backshells Black 90degree Adapter Assembly

Learn More

Datasheet

22In Stock

NT$2,956.19

NT$2,631.75

View

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Black 90degree Adapter Assembly

09F7R721XM13
Sunbank / Souriau
1: NT$3,075.57
22In Stock
Factory Special Order

Mfr. Part #
09F7R721XM13

Mouser Part #
649-09F7R721XM13

Factory Special Order

Sunbank / Souriau

Circular MIL Spec Backshells Black 90degree Adapter Assembly

Learn More

Datasheet

22In Stock

NT$3,075.57

NT$2,735.71

View

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Black 90degree Adapter Assembly

09F7R721XM23
Sunbank / Souriau
1: NT$3,571.38
25In Stock
Factory Special Order

Mfr. Part #
09F7R721XM23

Mouser Part #
649-09F7R721XM23

Factory Special Order

Sunbank / Souriau

Circular MIL Spec Backshells Black 90degree Adapter Assembly

Learn More

Datasheet

25In Stock

NT$3,571.38

NT$3,256.97

NT$3,240.48

View

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Black 90degree Adapter Assembly

09F7R721XM15
Sunbank / Souriau
1: NT$2,556.46
22In Stock
Factory Special Order

Mfr. Part #
09F7R721XM15

Mouser Part #
649-09F7R721XM15

Factory Special Order

Sunbank / Souriau

Circular MIL Spec Backshells Black 90degree Adapter Assembly

Learn More

Datasheet

22In Stock

NT$2,556.46

NT$2,283.29

View

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Black Straight Adapter Assembly

09F7S721XM17
Sunbank / Souriau
1: NT$5,040.87
45Expected 10/2/2026

Mfr. Part #
09F7S721XM17

Mouser Part #
649-09F7S721XM17

Sunbank / Souriau

Circular MIL Spec Backshells Black Straight Adapter Assembly

Learn More

Datasheet

45Expected 10/2/2026

NT$5,040.87

NT$4,626.44

Min.: 1
Mult.: 1

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Black 45degree Adapter Assembly

09F7A721XM11
Sunbank / Souriau
50: NT$3,424.03
Non-Stocked

Mfr. Part #
09F7A721XM11

Mouser Part #
649-09F7A721XM11

Sunbank / Souriau

Circular MIL Spec Backshells Black 45degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$3,424.03

NT$3,235.10

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

09F7A721XN11G
Sunbank / Souriau
50: NT$11,807.20
Non-Stocked

Mfr. Part #
09F7A721XN11G

Mouser Part #
649-09F7A721XN11G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$11,807.20

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

09F7A721XN13G
Sunbank / Souriau
50: NT$5,757.51
Non-Stocked

Mfr. Part #
09F7A721XN13G

Mouser Part #
649-09F7A721XN13G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$5,757.51

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

09F7A721XN15G
Sunbank / Souriau
50: NT$3,904.07
Non-Stocked

Mfr. Part #
09F7A721XN15G

Mouser Part #
649-09F7A721XN15G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$3,904.07

NT$3,688.61

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

09F7A721XN17G
Sunbank / Souriau
50: NT$11,920.13
Non-Stocked

Mfr. Part #
09F7A721XN17G

Mouser Part #
649-09F7A721XN17G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$11,920.13

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

09F7A721XN19G
Sunbank / Souriau
50: NT$5,206.14
Non-Stocked

Mfr. Part #
09F7A721XN19G

Mouser Part #
649-09F7A721XN19G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$5,206.14

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

09F7A721XN25G
Sunbank / Souriau
50: NT$12,017.28
Non-Stocked

Mfr. Part #
09F7A721XN25G

Mouser Part #
649-09F7A721XN25G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 45 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$12,017.28

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN13G
Sunbank / Souriau
50: NT$5,757.51
Non-Stocked

Mfr. Part #
09F7R721XN13G

Mouser Part #
649-09F7R721XN13G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$5,757.51

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN21G
Sunbank / Souriau
50: NT$3,055.14
Non-Stocked

Mfr. Part #
09F7R721XN21G

Mouser Part #
649-09F7R721XN21G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$3,055.14

NT$2,886.64

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN23G
Sunbank / Souriau
50: NT$6,425.40
Non-Stocked

Mfr. Part #
09F7R721XN23G

Mouser Part #
649-09F7R721XN23G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$6,425.40

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

09F7R721XN25G
Sunbank / Souriau
50: NT$12,017.28
Non-Stocked

Mfr. Part #
09F7R721XN25G

Mouser Part #
649-09F7R721XN25G

Sunbank / Souriau

Circular MIL Spec Backshells Plated 90 degree Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$12,017.28

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated Straight Adapter Assembly

09F7S721XN13G
Sunbank / Souriau
50: NT$5,825.98
Non-Stocked

Mfr. Part #
09F7S721XN13G

Mouser Part #
649-09F7S721XN13G

Sunbank / Souriau

Circular MIL Spec Backshells Plated Straight Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$5,825.98

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Circular MIL Spec Backshells Plated Straight Adapter Assembly

09F7S721XN15G
Sunbank / Souriau
50: NT$5,964.01
Non-Stocked

Mfr. Part #
09F7S721XN15G

Mouser Part #
649-09F7S721XN15G

Sunbank / Souriau

Circular MIL Spec Backshells Plated Straight Adapter Assembly

Learn More

Datasheet

Non-Stocked

NT$5,964.01

Min.: 50
Mult.: 50

MIL-DTL-38999 III, IV

Band Lock Adapters

Nickel

Thermoplastic (TP)

Single Arm Composite Backshells

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