D20419-80 Datasheet, PDF (218/386 Pages) ITT Industries – Military/Aerospace

MIL-C-28840 Connectors
Design Features
Coupling Nut
Retaining Wire
Insert
Retaining Clip
Insulator
Assembly
Gasket
EMI Spring
Pin
Contact
Socket
Contact
KFS
Coupling Nut
Cannon's M28840/KFS connectors are designed to
meet the rigid specifiations of MIL-C-28840.
These circular, threaded coupling connectors fea-
ture high contact desnsity, front release crimp con-
tacts, high impact shock resistance, and are de-
signed for use with navy shipboard cable
MIL-C-915, MIL-C-24640, MIL-C-24643 and
MIL-W-16878 wire.
M28840/KFS connectors utilize fluid resistant,
fluorosilicone elastomers to provide maximum pro-
tection against fuels, oils, coolants and cleansers.
High quality manufacturing processes and materials
combine to ensure the optimum in performance and
reliability under an extreme range of environmental
conditions, which inculde high impact shock, corro-
sion, vibration, moisture-resistance and water pres-
sure. Temperature withstanding capabilities range
from -55˚C to +200˚C (-67˚F to +392˚F)
M28840/KFS connectors are available in nine shell
sizes, accommodating from seven contacts in shell
size 11 up to 155 contacts in shell size 33, and have
a multiple keying arrangement to prevent mis-
mating.
Front Release System using standard MS tooling
Also available as KFS connectors are printed circuit
contacts for a variety of P.C. board/flex circuit
applications, 16 AWG contact sizes,* EMP adap-
ters/EMI RFI filters, connector savers, press fit
solder pins and fiber optic contacts, high perform-
ance EMI version and thru-bulkhead fittings.
EMI Shielding
EMI suppression is obtained by means of spring
fingers located on the plug. During mating, multiple
spring fingers make contact with the receptacle at
lease .040 (1.02) before pin and socket electrical
engagement occurs. In addition, a metal to metal
shield is obtained when accessories are attached to
the rear of the connector throught a unique spline
and ramp system. This total system provides the
most effective EMI protection in the industry.
Scoop Proof
100% scoop-proof protection on all connectors
eliminates bent pins as well as inadvertent electri-
cal contact whether pins are mounted in the plug or
receptacle.
Multiple Keying
Locksmith keying allows alternate polarizations
eliminating the possibility of mismating.
Quick Engagement
Double start-rapid advance thread provides rapid
engagement and disengagemetn of connector in
1-1/2 turns.
High Density
Maximum density of contacts is obtained without
sacrificing ruggedness required for high shock and
vibration while holding size to a minimum.
Corrosion Resistant**
Standard finish - olive drab chromate over cad-
mium over nickel finish provides in excess of 500
hours of protection from salt spray without degra-
dation of connector performance. Stainless steel
with black chromate over cadmium over nickel
finish provides protection in areas of direct salt
exposure.
* Consult factory
**KFS connecotors are available using alternate materials which
will exceed a ten thousand hour (10,000 hrs.) salt spray. These
connectors are intermateable & intermountable with both
aluminum and stainless steel connectors from ITT Cannon.
Contact Arrangements
Shell Size Designator
and Insert Arrangement
Shell Size
Number of Contacts
A-1
11
7 #20
B-1
13
12 #20
C-1
15
21 #20
Components - Standard
Standard Contact Part Numbers
Mating
End
Size
20
20
20
Wire
Barrel
Size
20
22
28
MS
Contact Part Number
Pin
Socket
M39029/83-508
M39029/84-509
M39029/83-450
M39029/84-452
M39029/83-451
M39029/84-453
D-1
17
31 #20
E-1
19
42 #20
F-1
23
64 #20
Cannon
Contact Part Number
Pin
Socket
030-8085-700
031-8005-700
030-8008-800
031-8004-300
030-8009-100
031-8004-400
G-1
25
92 #20
H-1
29
121 #20
Seal Plug Part Numbers
MS
Seal Plug
Part Number
MS27186
MS27186
MS27186
J-1
33
155 #20
Cannon
Seal Plug
Part Number
980-8003-000
980-8003-000
980-8003-000
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
218