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5
Outer Shell
Brass
LEMO series 00 connectors have a brass outer shell as
standard, and this is suitable for most general purpose
applications, including civilian and military.
The brass outer shells have a nickel-plated surface
which ensures very good protection against most envi-
ronments. Alternative protective coatings available are:
– Nickel-chrome offering higher protection against salt
air and most corrosive agents
– Nickel-gold
– Nickel-black chrome. After the black chrome treatment,
the part is coated with a protective film.
Aluminum Alloy
Aluminum alloy outer shells find numerous applications
where light weight is a predominant factor; such as in the
aeronautics and space industries, and for portable and
mobile equipment.
These materials have high mechanical strength and
Component
Outer shell, collet nut,
conical nut
Earthing crown
Latch sleeve
Crimp ferrule
Locking washer
Hexagonal nut
Other metallic components
Seals
Material (Standard)
Brass (UNS C 38500)
Al. alloy (AA 6012)
PEEK (MIL-P-46183)
Cu-Be (UNS C 17300)
Special Brass
Copper (UNS C 18700)
Bronze (UNS C 52100)
Brass (UNS C 38500)
Al. alloy (AA 6012)
1)
Brass (UNS C 38500)
Silicone or FPM
0.5
3
0.5
3
0.3
0.5
3
0.5
–
1
2
anodized
beige colored
–
0.5
–
0.5
–
0.5
–
0.5
–
0.5
anodized
–
0.5
without treatment
0.5
0.5
0.5
0.5
0.5
3
3
3
3
3
–
–
–
–
–
–
–
–
–
–
3
3
3
3
3
1.5
1.5
1.5
0.5
0.5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.5
3
–
–
3
0.5
–
–
–
Surface Treatment (μm)
Chrome
Ni
Cr
Nickel
Cu
Gold
Ni
Black Chrome
Cu
Ni
Ni
Cu
Cu
Au
Cr
Notes:
The surface treatment
standards are as follows:
– nickel QQ-N-290A, or MIL-
C-26074C
– chrome QQ-N-320B
– gold MIL-G-45204C type I,
class 1 (1.5 μm)
class 00 (0.5 μm)
– black chrome MIL-C-14538C
1)
supplied only with aluminum
alloy free or fixed recep-
tacles.
Materials and Treatment
General Characteristics
excellent resistance to corrosion.
The shell surface is protected by anodizing which is avai-
lable in six colors: blue, yellow, black, red, green, and
natural.
Plastic Materials
A PEEK outer shell is available which offers excellent
insulating properties and is mostly used in the medical
industry. This material is suitable for gas or steam steriliza-
tion.
Other Metallic Components
In general, other components are manufactured from
brass. However, bronze is used where good elasticity is
required (for example: earthing crown).
These parts are nickel or nickel-gold plated depending
on the utilization.
Values with earthing crown and latch sleeve or inner-sleeve nickel
plated.
Values with gold-plated earthing crown and nickel plated latch
sleeve or inner-sleeve.
Values with earthing crown and gold-plated latch sleeve or inner-
sleeve.
mV
A
G
R
1
(m
)
3.5
R
2
(m
)
2.8
R
3
(m
)
2.0
Electrical Characteristics
Screen continuity: according to test MIL-STD-1344A,
method 3007.
R
1
R
2
R
3
Testing current: 1A
A = Ammeter
mV = Millivoltmeter
G = Generator