Image for illustrative purpose only
Size
4M

Form & Material

Shell style / Model id
BGF - Blanking cap for free receptacle (arctic grip)
Housing material
Aluminium (nickel plated [SAE AMS QQ N 290], anthracite color) shell and nut, other pieces bronze/brass
Keying
3 keys (alpha=42, gamma=30, plug: male contacts, receptacle: female contacts)
Colour
Grey
Weight
11.2 g

Environment

Technical domain
Motorsport, Security and Defence, Transportation, Aerospace and UAV
Environmental sealing (IP rating)
IP68
Temperature range
-55°C / +135°C
EMI Shielding EIA 364-66A
>= 80 dB (1 GHz), >=70 dB (3 GHz), >= 58 dB (6 GHz), >= 40 dB (10 GHz)
Gunfire vibration
25 Hz - 2000 Hz, 3 axis (Apache helicopter)
Humidity (max)
21 days at 95%
Lighting strike EIA 364-76
10K amps - 6 times
Shock Resistance
300 g [ 3 ms]
Thermal shock
5 cycles: -65°C to +150°C
Vibration-Random
37.8 g rms - 3 axes, 4 hr amb [50 Hz - 2000 Hz]
Vibration-Sine
30 g, 3 axes, 12 hr [10 Hz - 2000 Hz]
Salt Spray Corrosion
max. 48 hr

Technical plans

https://web.lemo.com/img/Illustrations/m/accy/bgf_m_2.gif

Dimensions

A C L N P X
mm. 25.9 24.5 31 120 3.4 10
in. 1.02 0.96 1.22 4.72 0.13 0.39
M - Rugged Ratchet coupling
M - Rugged Ratchet coupling
Harsh environments (IP68)
Ratchet coupling, strong resistance to shocks and vibrations
Stealth Anthracite coating
Light & compact construction
Robust Multi-Keying system with color coding
Main Features
Harsh environments (IP68)
Ratchet coupling, strong resistance to shocks and vibrations
Stealth Anthracite coating
Light & compact construction
Robust Multi-Keying system with color coding
Cable Assembly UK
Cable assembly service

Receive the same high quality cable assemblies that you've come to expect from LEMO Push-Pull connectors.

Discover
Contact us
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Do you
have a 
challenging 
project?

No matter how harsh the environment may be, LEMO has a solution ready for you to implement today.

If not, we promise to relentlessly innovate and develop one for you. 
Please take a moment to reach out and describe your project, technical specifications and deadlines. We are standing by and looking forward to hearing from you - and adding your business to our thousands of longstanding satisfied customers, partners and employees - very soon.