Amphenol Heavy Duty
Cylindrical Connectors
MIL-C-22992, QWLD
Amphenol
®
QWLD Series heavy duty
cylindrical connectors provide reliable
power and control functions in hostile
environments where ordinary connec-
tors cannot survive.
Design features of this connector series
provide:
• High Durability -
water and explosion
proof, resistant to abrasion, corrosion,
vibration and shock
• Quick, Positive Mating -
double stub
threads per MIL-STD-1373 for fast cou-
pling, easily cleaned
• Selection -
over 300 industrial and MS-
approved insert patterns available,
including coaxial and thermocouple
On the drilling platform in the North Sea,
pump and motor generator controls run
smoothly, although constantly exposed to
salt spray.
At Prudhoe Bay where the nights are six
months long, portable lighting systems per-
mit operation regardless of temperature
plummeting to 50° below zero.
The circus ferris wheel runs continuously
despite the fact that it has rained for five
days and all power connections are lying in
six inches of mud.
These situations are typical of the extreme
conditions under which thousands of
Amphenol QWLD connectors are operating
daily. Outstanding design features that
make these cylindricals a necessity for diffi-
cult applications include:
•
Alumilite 225* hard anodic finish for
abrasion and corrosion resistance or
conductive cadmium plate
•
Resilient inserts for moisture sealing,
positive proof against shock and vibra-
tion
•
Sealing gaskets at every joint for water-
proof assembly
•
Cable strain relief provided by clamp bar
type accessories
•
Left hand accessory threads to prevent
damage from disconnect torque applied
in the wrong direction
•
Closed entry socket contact design in
solder or replaceable crimp contacts
* Registered trademark of Aluminum
Company of America
®
wall mount receptacle
thru bulkhead receptacle
cable connecting plug
straight plug
box mount receptacle
jam nut receptacle
(box mount)
jam nut receptacle
(wall mount)
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MIL-C-22992, QWLD
how to order
MS-APPROVED CONNECTORS
To
illustrate
the
ordering
procedure,
MS17343R20N27PW is shown as follows:
MS17343
1
PART NUMBER
R 20 N
2
3
4
27
5
part
number
P
6
W
7
QWLD INDUSTRIAL VERSIONS
These heavy duty connectors are identical to MS-approved types
except for the added flexibility of connector shell and contact type
and finish options, plus added insert arrangements. To illustrate
the ordering procedure, part number 10-194622-14S is shown as
follows:
PART NUMBER
10 – 194
1
2
6
3
22-14
4
S
5
1. MS Number -
MS17343 designates wall mount receptacle
MS17344 designates straight plug
MS17345 designates cable connecting plug
MS17346 designates box mount receptacle
MS17347 designates jam nut receptacle with rear
accessory threads (wall mount)
MS17348 designates jam nut receptacle (box mount)
2. Class -
C designates pressurized - used where circuit integrity is pro-
tected by a pressure differential
R designates environmental - see table, page 1
3. Shell Size -
available in shell sizes 12 through 44. Refer to
pages 53 through 59 for dimensional data.
4. Shell Finish -
C for conductive or N for non-conductive
5. Insert Arrangement -
current MS insert arrangements are
shown in black in the QWLD insert arrangements section of
this catalog. Only these arrangements are available in MS-
approved connectors.
6. Contact Type -
P for pin, S for socket
7. Alternate Insert Rotation -
used to prevent cross-mating of
connectors. Absence of a letter in this space indicates normal
(0°) position of the insert. Refer to page 26 for alternate insert
rotation illustrations.
1. Base Number Prefix -
used to define connector shell finish
and contact type and finish
10 - Solder type contacts, silver plated
75- Crimp type contacts, silver plated
81- Crimp type contacts, plated .0001 gold over silver
82- Crimp type contacts for MIL-C-13777 cable, silver plated
83- Crimp type contacts for MIL-C-13777 cable,
plated .0001 gold over silver
85- Crimp type contacts, plated .00005 gold over silver
All above prefix numbers utilize connector shells with Alumi-
lite* non-conductive finish
88- Solder type contacts, silver plated. Connector shell
utilizes olive drab cadmium plate over nickel
conductive finish.
2. Base Number -
QWLD Series Heavy Duty Cylindrical Con-
nector
3. Shell Style -
0 designates wall mount receptacle
1 designates cable connecting plug
2 designates box mount receptacle
3 designates jam nut receptacle with rear accessory threads
(wall mount)
4 designates thru bulkhead receptacle
6 designates straight plug
9 designates jam nut receptacle (box mount)
4. Shell Size/Insert Arrangement -
Amphenol
®
QWLD connec-
tors are available in equivalent MS shell sizes with all current
MS insert arrangements as well as a large selection of special
arrangements for power and signal circuits. Select the
required insert arrangement number from those shown in
black (MS arrangements) or red (industrial arrangements).
5. Contact Type/Alternate Insert Rotation -
P for pin, S for
socket. When an alternate position of the connector insert is
required to prevent cross-mating of connectors, a different let-
ter (other than P or S) is used. Select from the table below the
Amphenol
®
letter which indicates both type of contact and
insert rotation desired. Refer to page 26 for alternate insert
rotation illustrations.
Pin Contacts
MS Letters
Amphenol
®
Letters
Socket Contacts
MS Letters
Amphenol
®
Letters
P
PW
PX
PY
PZ
P (normal)
G
I
K
M
S
SW
SX
SY
SZ
S (normal)
H
J
L
N
Alumilite is a registered trademark of Aluminum Co. of America
22
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