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ALUMINUM BACKPLANE SYSTEMS MIL-C-M28754
 
 
 
CROSS REFERENCE:
MIL-C-28754 AND WS6157 TO SUN PART NUMBERS
 
Components contained within SUN's aluminum tuning fork backplanes meet the requirements of      MIL-C-28754 and WS6157 and are cross-referenced here.  Other contact lengths are available.  Please contact SUN Electronics for more information.

MIL SPEC
DASH #
OVERALL
LENGTH +/- .010
WIREWRAP
REF
TUNING FORK
CONTACT P/N
BUSHING
 
M28754 / 34
WS6157 / 1
TUNING FORK,
BUSHING, AND 
INSULATOR
-1
-2
-3
-4
-5
-6
 
0.518 (13.03)
0.588 (14.93)
0.688 (17.47)
0.838 (21.28)
0.963 (24.46)
1.088 (27.63)
0.175 (4.45)
0.250 (6.35)
0.350 (8.89)
0.500 (12.70)
0.625 (15.88)
0.750 (19.05)
121-6620-614
121-6614-614
121-6643-614
121-6611-614
121-6625-614
121-6613-614
 
413-1113-113
413-1113-113
413-1113-113
413-1113-113
413-1113-113
413-1113-113
M28754 / 36
WS6157 / 3
TUNING FORK
AND GROUND
BUSHING SET
-1
-2
-3
-4
-5
-6
 
 0.518 (13.03)
0.588 (14.93)
0.688 (17.47)
0.838 (21.28)
0.963 (24.46)
1.088 (27.63)
 
   0.175 (4.45)
0.250 (6.35)
0.350 (8.89)
0.500 (12.70)
0.625 (15.88)
0.750 (19.05)
121-6620-614
121-6614-614
121-6643-614
121-6611-614
121-6625-614
121-6613-614
627-1125-616
627-1125-616
627-1125-616
627-1125-616
627-1125-616
627-1125-616
 
M28754 / 37
WS6157 / 4
TUNING FORK
AND
BUSHING
-1
-2
-3
-4
-5
-6
 

0.518 (13.03)
0.588 (14.93)
0.688 (17.47)
0.838 (21.28)
0.963 (24.46)
1.088 (27.63)

0.175 (4.45)
0.250 (6.35)
0.350 (8.89)
0.500 (12.70)
0.625 (15.88)
0.750 (19.05)
121-6620-614
121-6614-614
121-6643-614
121-6611-614
121-6625-614
121-6613-614
413-1112-113
413-1112-113
413-1112-113
413-1112-113
413-1112-113
413-1112-113
M28754 / 38
WS6157 / 5
GROUND
WRAP POST
-1
-2
-3
-4
-5
-6
 0.320 (8.13)
0.395 (10.03)
0.495 (12.57)
0.645 (16.38)
0.770 (19.56)
0.895 (22.73)
  0.175 (4.45)
0.250 (6.35)
0.350 (8.89)
0.500 (12.70)
0.625 (15.88)
0.750 (19.05)
162-3625-614
162-3626-614
162-3627-614
162-3617-614
162-3618-614
162-3619-614
 
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Plating Designation for WS6157 Spec will be -614
Typical Call-Out: MIL-C-28754/34-5 : SUN contact P/N 121-6625-614
                         WS6157/15000       Insulator P/N 413-1113-113
M28754/38-X = Terminal Ground Post .025 Square
 
 
 

CROSS REFERENCE:
581R848HXX PART NUMBERS TO SUN PART NUMBERS

Components contained within SUN's aluminum tuning fork backplanes meet the requirements of      MIL-C-28754 and 581R848HXX and are cross-referenced here.  Other contact lengths and parts are available.  Please contact SUN Electronics for more information.

581R848HXX
PART NUMBERS
H SUFFIX #
SUN
PART NUMBERS
581R848H
PART 
NUMBERS
-02
-03
-04
-05
-14
-15
-17
-27
-33
-35
-55
675-1147-111
675-1152-111
627-1146-111
627-1147-111
413-1112-113
415-1112-113
627-1125-616
161-3621-614
161-3613-614
161-3612-614
121-9612-614

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POLARIZING KEYS
(Material Polycarbonate per L-P-393 or Sintered Metal)

webassets/Polarizingkeydiagram1.jpg
POLARIZING KEYS

SUN recommends sintered metal to increase the "polarizing feel" of connectors (especially those with large number of contacts) to prevent the engagement of those that should not mate.
 
 
 
 

SUN PART NUMBER
FIG.
MATERIAL
TYPE
MIL SPEC
PART NUMBER
SUN PART
NUMBER FOR
MATING PIN
627-1121-112
 
627-1122-112
 
627-1236-112
 
627-1146-111
 
627-1147-111
1
 
2
 
3
 
1
 
2
Poly_
carbonate
Poly-
carbonate
Poly-
carbonate
Sintered
Metal
Sintered
Metal
D
 
V
 
O
 
D
 
V
M28754 / 39 - 002
 
M28754 / 39 - 001
 
N/A
 
M28754 / 39 - 005
 
M28754 / 39 - 004
675 - 1134 - 111
 
675 - 1152 - 111
 
675 - 1283 - 111
 
675 - 1134 - 111
 
675 - 1152 - 111

 
 
DIMENSIONAL DATA

 
 
CONTACTS AND INSULATORS

ContactsandInsulators.jpg
CONTACTS AND INSULATORS - DIMENSIONAL DATA
CONTACT / TUNING FORK - SQUARE TAIL
(normal insertion force)
 

PART NUMBER
OVERALL LENGTH
A (+ / - .012)
WIREWRAP REF
 
121-6611-614
121-6613-614
121-6614-614
121-6620-614
121-6625-614
121-6643-614
 
 
 
 
 
 
0.838
1.088
0.588
0.518
0.963
0.688
0.500 (12.78)
0.750 (19.05)
0.250 (6.35)
0.175 (4.45)
0.625 (15.88)
0.350 (8.89)
 
 

- Last 3 digits (614) specify plating type / military plating.
Please contact SUN to inquire about any part not seen here or to review availability.
 
 

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INSULATORS

PART NUMBER
DESCRIPTION
BOSS
LENGTH
MATERIAL
B (SQ.)
413-1113-113
413-1112-113
413-1121-113
413-1129-113
413-1110-113
413-1141-113
413-1155-113
 
 
 
 
 
 
 
 
 
1 key
2 key
2 key "V"
2 key "D"
1 key
2 key
1 key
.120
.120
.120
.120
.180
.180
.300
natural, nylon
natural, nylon
natural, nylon
natural, nylon
natural, nylon
natural, nylon
natural, nylon
.100 (2.54)

- 113 DESIGNATES NATURAL COLOR, OTHER COLORS AVAILABLE UPON REQUEST.

 
 
GROUND AND VOLTAGE BUSHINGS

groundbushings.jpg
GROUND BUSHINGS

PART NUMBER
C  (DIAMETER)
DESCRIPTION
 
627-1125-616
627-1139-661
 
 
 
 
0.100 (2.54) max.
ground
voltage - TIN

 
FEED THROUGH'S

PART NUMBER
OVERALL
LENGTH
MATERIAL
 
 
161-3611-614
161-3612-614
161-3613-614
161-3614-614
 
 
 
 
 
0.766
0.891
1.001
1.141
phosphor bronze
phosphor bronze
phosphor bronze
phosphor bronze
 
 
 

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FIELD REPAIR TOOLS

DESCRIPTION
PART NUMBER
CONTACT / INSULATOR INSERTION
CONTACT / GROUND BUSHING INSERTION
CONTACT / INSULATOR EXTRACTION
CONTACT / GROUND BUSHING EXTRACTION
GROUND BUSHING INSERTION
711-1115-111
711-1115-111
711-1112-111
711-1112-111
711-1269-111