Model: SM-B-428374

Power Transformer

Special Features:

Center tap common to first and second secondary windings

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
3.375 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
1.875 inches single mounting facility single center group
Frequency Rating
47.5 hertz single component and 420.0 hertz single component
Input-output Phase Relationship
Single phase to single phase single component
Maximum Transformer Power Rating
1.8 watts single component
Winding Shielding Method
Internal shield grounded to core single component
Body Length
3.060 inches
Body Width
2.620 inches
Body Height
4.250 inches
Inclosure Type
Hermetically sealed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded hole single group
Winding Function And Quantity
1 primary single component and 4 secondary single component
Thready Qty Per Inch (tpi)
32 single group
Thread Size
0.164 inches single group
Winding Operating Current
50.0 milliamperes ac single component all secondary
Winding Operating Voltage
14.01 ac volts single component 1st secondary
Winding Operating Voltage
115.00 ac volts single component single primary
Winding Operating Voltage
20.92 ac volts single component 3rd secondary
Winding Operating Voltage
21.52 ac volts single component 4th secondary
Winding Operating Voltage
26.57 ac volts single component 2nd secondary
Thread Series Designator
Unc single group
Terminal Type And Quantity
11 turret
NSN
5950-01-038-4322
Part Number
SM-B-428374
Description
Transformer,power
CAGE
80063

A transformer consisting of one or more primary winding(s) and one or more secondary winding(s). It may be designed for direct connection to an alternating current source for purposes of changing the secondary volts and amperes or designed to eliminate metallic interconnection between circuits in an overall one to one voltage ratio, with or without additional output windings, or items designed to automatically maintain a constant output voltage within specified limits under varying input or load conditions. Also includes items having a provision for mechanically changing the turns ratio or inductive coupling in progressive increments by means of voltage taps, ratio adjuster, or devices oe similar design. For transformers having winding(s) common to both input and output circuits, see transformer (1), power, autotransformer. Excludes transformer (1), pulse.

Part SM-B-428374 NSN 5950-01-038-4322

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
32496
FIIG:
A058B0
Concept No.:
1
App. Key:
J
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
U
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
4.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063420
UFC:
35355
LTL:
RATING VARIABLE
LCL:
--
WCC:
595
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8504314035
  • SITC: 77119
  • End Use: Generators, accessories
  • NAICS: 334416
  • USDA: 1

Freight Class: Transformers, having a power handling capacity less than 40 va, nesoi

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