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10-503140-032 Datasheet, PDF (228/437 Pages) Amphenol Corporation – The Interconnection Leader
Shielded/Coaxial Contacts
For MIL-DTL-26500 Connectors
Amphenol
Aerospace
Drawing
(See below
and on
next page)
Type 1
#1 Shielded
Type 2
#1 Shielded
Type 3
#1 Shielded
Type 4
#2 Shielded
Type 5
#2 Shielded
Shielded
Contact Part No./
Contact Type
48-1226-02 Pin
48-1227-02 Socket
48-1227-50 Socket
48-1226-57 Pin
48-1227-57 Socket
48-1226-51, -54 Pin
48-1227-51, -54, -56 Socket
48-1226-55 Pin
48-1227-55 Socket
48-2187-02 Pin
48-2188-02 Socket
48-2187-50, -51 Pin
48-2188-50, -51, -53, -54
Socket
48-2187-52 Pin
48-2188-52 Socket
Cable Stripping Dim.***
+.0156
–.0000
A
B
C
Amphenol Crimp Tools
(Center Contact)
Tool
Nest
Crimp
Bushing Setting
.2189 .0781 .1094
294-268*
294-289**
294-1631
.2189
.2189
.2344
.2189
.2189
.3125
.0781
.0313
.0313
.1094
.1094
.1094
.1094
.1563
.1563
.1406
.1406
.1406
294-268*
294-289**
294-268*
294-289**
294-268*
294-289**
294-126**
294-243**
294-1166**†
294-358**
294-268*
294-1166**†
294-358**
294-268*
294-358**
294-268*
294-1631
294-1631
294-1631
294-1014
Turret Head
294-1014
294-1015
299-1630
294-1014
294-1015
294-1630
294-1015
294-1630
#3
#1
#1
#1
#1
.030
-.040
.030 
.040
  #3
.037
-.041
Outer
Ferrule
Crimping
Tool††
294-529
294-529
294-528
294-528
294-529
294-528
294-528
294-530
Cable Application
#22 AWG per MIL-C-7078
Type II and MIL-C-27500-22
KING RG-174/U,  -188/U
RG-161/U,  -179/U,  -179A/U,  -187/U
Raychem 9530A11
RG-180/U,  -180A/U,  -180B/U,  -195/U
RG-178/U,  -178A/U,  -178B/U,  -196-U
#18, 20, 22 AWG per MIL-C-7078, Type II
and MIL-C-27500-18,  -20,  -22 KING
Extruded Jacket
RG-180/U,  -180A/U,  -180B/U,  -195/U
RG-59/U and 21-541
* Conforms to MIL-C-22520/2 specification.
** MS3191 tools are inactive for new procurement, but can be used if available.
*** Refer to illustration on page 228.
†  Same as 294-126, less positioners.
††  Including Hex Die Set
Type 1
Shielded Contact Assembly Procedure
Step 1
Slide sealing boot or sleeve and outer ferrule onto cable and strip cable as shown at right.
After stripping, slide spacer over center conductor as shown for Type 2 and Type 3.
For Type 3 slide spacer under wire braid.
SEALING
SLEEVE
CENTER PIN
CONTACT
SOCKET BODY
ASSEMBLY
SEALINSSGELEASSSSELELELVIENAEAELGELVIVINNECEGGENTERCCEOPNNCCICCNTTEOEOEANNNNRCTTTTTEAPEARCISRCNOTPTPCIINNKESATOSBSCSAOSAEKOSOSDMESCSYCTBEKEKMLBEMEYTOBTBLDBLBYYYOODDYY
SLEEVE
CONTACT
ASSEMBLY
OUTER CENTER SOCKET PIN BODY
FERRULE CONTACT
ASSEMBLY
OUTEROFEURTOFOFSREEUEEUCURRRTATELRERLENEURIURNTLLEGEERCCSEOSLNNCCOECCTTEOECEOEANVNKNNRCETTETTTEASTEAROCRCTCSTSKOPOEICCNTKKBEEOTTPADISYNSPAPABEISISNMONSSDBBEBEYMLOMOYDBDBYLYLYY
FERRULE CONTACT
ASSEMBLY
SEASSLEEINAALGLIINSNGLGESSELLVEEEEVVEE
SEALING SLEEVE
OUTER FERRULE
Step 2
Insert stripped center conductor into contact until wire shows through inspection hole and dielectric (Type 1,
Type 4 and Type 5) or spacer (Type 2 and Type 3) butts against contact. Fully seat contact in nest bushing of
crimp tool and crimp in one full stroke. (Follow same crimping procedures except use nest bushing crimping
tool from table above).
OUTOOEUURTTEFERERRFFREEURRLRREUULLEE
OUTER FERRULE
Step 3
Step 4
Step 5
Slightly flair out ends of wire braid to facilitate insertion of inner ferrule of body assembly.
Do not comb braid.
Install center contact in body assembly and slide inner ferrule underneath wire braid as shown. Push center
contact until it is locked in place in the body assembly. Pull lightly on cable to make sure that contact is
securely locked in place.
Slide outer ferrule over braid and up against body as shown. There should be no slack in the wire braid.
Crimp the outer ferrule with proper tool from table above. Then for Type 1, Type 3 and Type 5 slide sealing
sleeve toward contact until sleeve touches outer ferrule.
Step 6
Insert the assembled shielded contact into the connector in the same way as the standard contact using
applicable insertion tool (see page 28). This completes assembly for Type 1, Type 2, Type 3 and Type 5.
Step 7
To complete assembly for Type 4, push sealing boot into connector grommet until O-ring riser of boot snaps
into place and seals the assembly.
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com 227