44
Tri-Start
how to order – (D38999, TV military, metal)
how to order – (MTV26 CLUTCH-LOK
®
)
Connector Type
D38999/ designates MIL-DTL-38999 Series III Connector
MTV designates military D38999/26 CLUTCH-LOK high vibration
straight plug (available in service class RK only)
Shell Style
20 designates wall mount receptacle
21 designates box mount receptacle, hermetic
23 designates jam nut receptacle, hermetic
24 designates jam nut receptacle
25 designates solder mount receptacle, hermetic
26 designates straight plug
27 designates weld mount receptacle, hermetic
Lanyard Release Connectors (See pages 28-32 for ordering)
29 designates lanyard release plug with pin contacts
30 designates lanyard release plug with socket contacts
31 designates lanyard release plug for MIL-STD-1760 with
pin contacts
Protection Caps (See page 40 for ordering MS protection caps)
32 designates plug protection cap
33 designates receptacle protection cap
Service Class
C non-conductive, anodic coated aluminum, 500 hour salt
spray, 200°C
F electroless nickel plated aluminum, optimum EMI
shielding effectiveness –65dB @ 10GHz specification
min., 48 hour salt spray, 200°C
G space grade, electroless nickel, 48 hour salt spray, 200°C
K corrosion resistant stainless steel, firewall capability, plus
500 hour salt spray resistance, EMI –45 dB @ GHz
specification min., 200°C
L corrosion resistant steel, electrodeposited nickel, 48 hour
salt spray, 200°C
W corrosion resistant olive drab cadmium plate aluminum,
500 hour extended salt spray, EMI –50 dB @ 10 GHz
specification min., 175°C
Y hermetic seal, passivated stainless steel, 200°C
S (non-hermetic connectors), nickel plated stainless
steel, optimum EMI shielding effectiveness –65dB
@ 10 GHz specification min., 500 hour salt spray,
200°C
N (hermetic connectors), nickel plated stainless steel,
200°C
Shell Size
MIL-DTL-38999, Sizes 9-25.
D38999/ 20 F A 35 P B
Connector Type
Shell Style
Service Class
Shell Size
Insert Arrangement
Contact Type
Alternate Positions
Military Part Number
To more easily illustrate ordering procedure of Tri-Start Connectors (metal) by military
designation, part number D38999/20F A35PB is shown as follows:
A B C D E F G H J MIL Shell Size
9 11 13 15 17 19 21 23 25 Amphenol
Shell Size
Insert Arrangement
MIL-DTL-38999, see insert arrangement charts, pgs. 6 & 7.
Contact Type
P designates pin contacts
S designates socket contacts
A designates same as “P” except supplied less pin
contacts
B designates same as “S” except supplied less socket
contacts (A & B designates non-standard contact
applications)
X designates eyelet contacts, hermetics only
Alternate Positions
Locksmith keying - rotation of minor keys. See page 8.
Use N for normal.
Special Variations
Consult Amphenol Aerospace, Sidney, NY for variations.
