Model: 5-1257

Power Autotransforme Transformer

Properties:

Reliability Indicator
Not established
Frequency Rating
400.0 hertz single component and 800.0 hertz single component
Input-output Phase Relationship
Single phase to single phase single component
Body Length
3.312 inches
Body Outside Diameter
1.812 inches
Inclosure Type
Fully enclosed
Mounting Method
Threaded bushing single group
Winding Function And Quantity
1 primary, variable autotransformer type single component
Thready Qty Per Inch (tpi)
32 single group
Thread Size
0.375 inches single group
Winding Operating Current
2.5 amperes ac single component single primary output
Winding Power Rating
70.0 volts-amperes single component single primary output
Winding Operating Voltage
0.00 ac volts single component single primary output and 28.00 ac volts single component single primary output
Winding Operating Voltage
115.00 ac volts single component single primary input
Thread Series Designator
Unef single group
Terminal Type And Quantity
3 threaded stud
NSN
5950-00-690-0365
Part Number
5-1257
Description
Transformer,power Autotransforme
CAGE
58474

A transformer which incorporates the primary and secondary functions into a single winding, which is common to both input and output circuits, and is designed to change the relationship of volts and amperes between the entire winding and its taps. Includes multiple winding transformers of like design and items in which a variation of the turns ratio or inductive ratio of inductive coupling is accomplished by connection to fixed terminals. Also, includes items having a provision for mechanically changing the turns ratio in progressive increments, by means of a shaft, voltage taps, ratio adjuster, or devices of similar design. Excludes transformer (1), power; transformer (1), pulse.

Part 5-1257 NSN 5950-00-690-0365

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
36166
FIIG:
A058B0
Concept No.:
1
App. Key:
M
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:
1.0000lbs
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: 8504500000
  • SITC: 77125
  • End Use: Generators, accessories
  • NAICS: 334416
  • USDA: 1

Freight Class: Inductors, nesoi

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