.hide-partial { max-height: none; } .show-more { display: none; }

Self Locking Connectors

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Connectors

List Images

Results: 23,250

Applied Filters:

Mating Style = Self Locking

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circular MIL Spec Connector 16P FM SZ 21 PIN WL MNT

D38999/20FG16PN
Amphenol Aerospace
1: $232.26
31In Stock

Mfr. Part No.
D38999/20FG16PN

Mouser Part No
654-D38999/20FG16PN

Amphenol Aerospace

Circular MIL Spec Connector 16P FM SZ 21 PIN WL MNT

Learn More

Datasheet

31In Stock

$232.26

$175.45

$115.67

$105.41

Min.: 1
Mult.: 1

Circular MIL Spec Connector 16P RCPT SZ 21 SKT WL MNT

D38999/20FG16SN
Amphenol Aerospace
1: $148.93
17In Stock

Mfr. Part No.
D38999/20FG16SN

Mouser Part No
654-D38999/20FG16SN

Amphenol Aerospace

Circular MIL Spec Connector 16P RCPT SZ 21 SKT WL MNT

Learn More

Datasheet

17In Stock

$148.93

$135.82

$130.60

$126.24

$119.27

Min.: 1
Mult.: 1

Circular MIL Spec Connector 21P FM SZ 23 PIN WL MNT

D38999/20FH21PN
Amphenol Aerospace
1: $169.12
35In Stock

Mfr. Part No.
D38999/20FH21PN

Mouser Part No
654-D38999/20FH21PN

Amphenol Aerospace

Circular MIL Spec Connector 21P FM SZ 23 PIN WL MNT

Learn More

Datasheet

35In Stock

$169.12

$135.52

$129.44

$123.28

Min.: 1
Mult.: 1

Circular MIL Spec Connector 55P SZ 23 WALL MNT SOCKET

D38999/20FH55SN
Amphenol Aerospace
1: $191.65
94In Stock

Mfr. Part No.
D38999/20FH55SN

Mouser Part No
654-D38999/20FH55SN

Amphenol Aerospace

Circular MIL Spec Connector 55P SZ 23 WALL MNT SOCKET

Learn More

Datasheet

94In Stock

$191.65

$175.89

$169.12

$163.47

$154.46

Min.: 1
Mult.: 1

Circular MIL Spec Connector 19P RCPT SZ 25 PIN WL MNT

D38999/20FJ19PN
Amphenol Aerospace
1: $180.89
15In Stock
100Expected 23/10/2026

Mfr. Part No.
D38999/20FJ19PN

Mouser Part No
654-D38999/20FJ19PN

Amphenol Aerospace

Circular MIL Spec Connector 19P RCPT SZ 25 PIN WL MNT

Learn More

Datasheet

15In Stock

100Expected 23/10/2026

$180.89

$166.02

$159.62

$154.29

$145.78

Min.: 1
Mult.: 1

Circular MIL Spec Connector 128P RCPT SZ 25 PIN WL MNT

D38999/20FJ35PA
Amphenol Aerospace
1: $182.82
23In Stock
100Expected 23/10/2026

Mfr. Part No.
D38999/20FJ35PA

Mouser Part No
654-D38999/20FJ35PA

Amphenol Aerospace

Circular MIL Spec Connector 128P RCPT SZ 25 PIN WL MNT

Learn More

Datasheet

23In Stock

100Expected 23/10/2026

$182.82

$161.27

$159.26

$158.29

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector TRI-START ALUMINUM

D38999/20FJ35SN
Amphenol Aerospace
1: $323.04
8In Stock
25Expected 5/10/2026

Mfr. Part No.
D38999/20FJ35SN

Mouser Part No
654-D38999/20FJ35SN

Amphenol Aerospace

Circular MIL Spec Connector TRI-START ALUMINUM

Learn More

Datasheet

8In Stock

25Expected 5/10/2026

$323.04

$284.96

$274.73

$272.67

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 13C 13#22D SKT RECP

D38999/20TB35SN
Amphenol Aerospace
1: $131.36
31In Stock

Mfr. Part No.
D38999/20TB35SN

Mouser Part No
654-D38999/20TB35SN

Amphenol Aerospace

Circular MIL Spec Connector TV 13C 13#22D SKT RECP

Datasheet

31In Stock

$131.36

$119.79

$119.49

$97.24

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 22C 22#22D SKT RECP

D38999/20TC35SN
Amphenol Aerospace
1: $196.11
19In Stock

Mfr. Part No.
D38999/20TC35SN

Mouser Part No
654-D38999/20TC35SN

Amphenol Aerospace

Circular MIL Spec Connector TV 22C 22#22D SKT RECP

Datasheet

19In Stock

$196.11

$194.15

$141.48

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 13C 13#22D SKT RECP ZNI

D38999/20ZB35SN
Amphenol Aerospace
1: $188.88
100In Stock
100Expected 6/11/2026

Mfr. Part No.
D38999/20ZB35SN

Mouser Part No
654-D38999/20ZB35SN

Amphenol Aerospace

Circular MIL Spec Connector TV 13C 13#22D SKT RECP ZNI

Datasheet

100In Stock

100Expected 6/11/2026

$188.88

$112.53

$109.89

$98.57

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 5C 5#20 SKT RECP ZNI

D38999/20ZB98PN
Amphenol Aerospace
1: $162.40
38In Stock
138On Order

Mfr. Part No.
D38999/20ZB98PN

Mouser Part No
654-D38999/20ZB98PN

Amphenol Aerospace

Circular MIL Spec Connector TV 5C 5#20 SKT RECP ZNI

Datasheet

38In Stock

138On Order

$162.40

$106.38

$103.96

$89.34

$88.75

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 4C 4#16 SKT RECP ZNI

D38999/20ZC4SN
Amphenol Aerospace
1: $253.53
25In Stock

Mfr. Part No.
D38999/20ZC4SN

Mouser Part No
654-D38999/20ZC4SN

Amphenol Aerospace

Circular MIL Spec Connector TV 4C 4#16 SKT RECP ZNI

Datasheet

25In Stock

$253.53

$195.04

$156.02

$117.04

$82.74

Min.: 1
Mult.: 1

Circular MIL Spec Connector 6P RCPT SZ 9 PIN PNL MNT

D38999/24FA35PN
Amphenol Aerospace
1: $119.18
34In Stock

Mfr. Part No.
D38999/24FA35PN

Mouser Part No
654-D38999/24FA35PN

Amphenol Aerospace

Circular MIL Spec Connector 6P RCPT SZ 9 PIN PNL MNT

Learn More

Datasheet

34In Stock

$119.18

$101.42

$95.08

$90.54

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 6P FM SZ 9 SKT PNL MNT

D38999/24FA35SN
Amphenol Aerospace
1: $87.60
23In Stock
100Expected 29/9/2026

Mfr. Part No.
D38999/24FA35SN

Mouser Part No
654-D38999/24FA35SN

Amphenol Aerospace

Circular MIL Spec Connector 6P FM SZ 9 SKT PNL MNT

Learn More

Datasheet

23In Stock

100Expected 29/9/2026

$87.60

$84.95

Min.: 1
Mult.: 1

Circular MIL Spec Connector 2P SZ 11 PANEL MNT PIN

D38999/24FB2PN
Amphenol Aerospace
1: $226.59
16In Stock
100Expected 12/11/2026

Mfr. Part No.
D38999/24FB2PN

Mouser Part No
654-D38999/24FB2PN

Amphenol Aerospace

Circular MIL Spec Connector 2P SZ 11 PANEL MNT PIN

Learn More

Datasheet

16In Stock

100Expected 12/11/2026

$226.59

$204.92

Min.: 1
Mult.: 1

Circular MIL Spec Connector 13P SZ 11 RCPT PNL MNT PIN

D38999/24FB35PA
Amphenol Aerospace
1: $150.84
45In Stock
27Expected 9/11/2026

Mfr. Part No.
D38999/24FB35PA

Mouser Part No
654-D38999/24FB35PA

Amphenol Aerospace

Circular MIL Spec Connector 13P SZ 11 RCPT PNL MNT PIN

Learn More

Datasheet

45In Stock

27Expected 9/11/2026

$150.84

$147.61

$141.97

$121.37

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 6C 6#20 SKT J/N RECP

D38999/24FB98PA
Amphenol Aerospace
1: $122.60
20In Stock

Mfr. Part No.
D38999/24FB98PA

Mouser Part No
654-D38999/24FB98PA

Amphenol Aerospace

Circular MIL Spec Connector TV 6C 6#20 SKT J/N RECP

Learn More

Datasheet

20In Stock

$122.60

$111.81

$103.07

$95.59

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT

D38999/24FE35PA
Amphenol Aerospace
1: $171.01
61In Stock

Mfr. Part No.
D38999/24FE35PA

Mouser Part No
654-D38999/24FE35PA

Amphenol Aerospace

Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT

Learn More

Datasheet

61In Stock

$171.01

$155.94

$149.94

$144.94

$136.94

Min.: 1
Mult.: 1

Circular MIL Spec Connector 11P SZ 19 PANEL MOUNT PIN

D38999/24FF11PN
Amphenol Aerospace
1: $135.66
25In Stock

Mfr. Part No.
D38999/24FF11PN

Mouser Part No
654-D38999/24FF11PN

Amphenol Aerospace

Circular MIL Spec Connector 11P SZ 19 PANEL MOUNT PIN

Learn More

Datasheet

25In Stock

$135.66

$122.55

$118.16

$115.25

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 11P SIZE 19 SOCKET PANEL MOUNT RECPT

D38999/24FF11SN
Amphenol Aerospace
1: $174.22
61In Stock

Mfr. Part No.
D38999/24FF11SN

Mouser Part No
654-D38999/24FF11SN

Amphenol Aerospace

Circular MIL Spec Connector 11P SIZE 19 SOCKET PANEL MOUNT RECPT

Learn More

Datasheet

61In Stock

$174.22

$159.01

$157.43

$155.86

Min.: 1
Mult.: 1

Circular MIL Spec Connector 11P SZ 21 RCPT PNL MNT SKT

D38999/24FG11SN
Amphenol Aerospace
1: $224.60
Lead-Time 10 Weeks

Mfr. Part No.
D38999/24FG11SN

Mouser Part No
654-D38999/24FG11SN

Amphenol Aerospace

Circular MIL Spec Connector 11P SZ 21 RCPT PNL MNT SKT

Learn More

Datasheet

Lead-Time 10 Weeks

$224.60

$206.12

$198.19

$191.57

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Connector TV 128C

D38999/24FJ35SN
Amphenol Aerospace
1: $261.30
39In Stock
1On Order

Mfr. Part No.
D38999/24FJ35SN

Mouser Part No
654-D38999/24FJ35SN

Amphenol Aerospace

Circular MIL Spec Connector TV 128C

Learn More

Datasheet

39In Stock

1On Order

$261.30

Min.: 1
Mult.: 1

Circular MIL Spec Connector 18P Sz 19 Jam Nut Recpt Pin Cont

D38999/24WF18PN
Amphenol Aerospace
1: $470.74
8In Stock

Mfr. Part No.
D38999/24WF18PN

Mouser Part No
654-D38999/24WF18PN

Amphenol Aerospace

Circular MIL Spec Connector 18P Sz 19 Jam Nut Recpt Pin Cont

Datasheet

8In Stock

$470.74

$402.12

Min.: 1
Mult.: 1

Circular MIL Spec Connector MS RECEPTACLES - BLACK ZINC NICKEL

D38999/24ZA35SN
Amphenol Aerospace
1: $143.13
18In Stock
7On Order

Mfr. Part No.
D38999/24ZA35SN

Mouser Part No
654-D38999/24ZA35SN

Amphenol Aerospace

Circular MIL Spec Connector MS RECEPTACLES - BLACK ZINC NICKEL

Datasheet

18In Stock

7On Order

$143.13

Min.: 1
Mult.: 1

Circular MIL Spec Connector 22C 22#22D SKT Jam Nut REC

D38999/24ZC35SN
Amphenol Aerospace
1: $276.42
84In Stock
92On Order

Mfr. Part No.
D38999/24ZC35SN

Mouser Part No
654-D38999/24ZC35SN

Amphenol Aerospace

Circular MIL Spec Connector 22C 22#22D SKT Jam Nut REC

Datasheet

84In Stock

92On Order

$276.42

$203.13

$180.10

$144.87

Min.: 1
Mult.: 1

Self Locking Connectors

Types of Connectors

Customer Service Office

Company

Resources

Support