PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

603995Transformer,power

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5950-00-648-3441 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-648-3441 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-648-3441. Primary manufacturer part number: 603995.
Features
  • Transformer,power — FSC 5950
  • Winding Power Rating: UNABLE TO DECODE198.0 VOLTS-AMPERES SINGLE COMPONENT ALL SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: UNABLE TO DECODE1.5 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
  • Winding Operating Voltage: UNABLE TO DECODE90.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Operating Voltage: UNABLE TO DECODE840.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Winding Operating Current: UNABLE TO DECODE67.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
  • Nominal Thread Size: 0.130 INCHES SINGLE GROUPUNABLE TO DECODE IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-648-3441, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-648-3441
Primary Part Number603995
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Winding Power RatingUNABLE TO DECODE198.0 VOLTS-AMPERES SINGLE COMPONENT ALL SECONDARY
Reliability IndicatorNOT ESTABLISHED
Winding Operating CurrentUNABLE TO DECODE1.5 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Winding Operating VoltageUNABLE TO DECODE90.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating VoltageUNABLE TO DECODE840.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating CurrentUNABLE TO DECODE67.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Nominal Thread Size0.130 INCHES SINGLE GROUPUNABLE TO DECODE IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUPUNABLE TO DECODE IN
Winding Operating CurrentUNABLE TO DECODE16.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENTUNABLE TO DECODE
Mounting Facility Quantity4 SINGLE GROUPUNABLE TO DECODE
Winding Operating VoltageUNABLE TO DECODE6.30 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length2.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUPUNABLE TO DECODE IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUPUNABLE TO DECODE
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENTUNABLE TO DECODE
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Maximum Operating Temp180.0 CELSIUS DEGC
Inclosure TypeOPEN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity15 TAB, SOLDER LUG
Thread Series DesignatorUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-150-368544133 INTERCHANGEABLE
Nut,plain,round
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5133-00-262-2175 INTERCHANGEABLE
Drill,twist
5360-00-292-36365399 INTERCHANGEABLE
Spring,helical,compression
R.h. Industries, Inc.
5950-00-303-54008018112 INTERCHANGEABLE
Reactor
Us Army Aviation and Missile Command
5330-00-485-0786281W450 INTERCHANGEABLE
Seal,plain Encased
Cone Drive Operations Inc
4730-00-720-00695399 INTERCHANGEABLE
Fitting,lubrication
Mcneil Ohio Corp
5935-00-729-1021 INTERCHANGEABLE
Connector,plug,electrical
5360-01-247-1076 INTERCHANGEABLE
Spring,helical,compression
4933-01-273-3071 INTERCHANGEABLE
Adapter,optical Boresight,9 Mm
5120-01-335-1049 INTERCHANGEABLE
Extension,socket Wrench
Cross-Reference Index
Part NumberManufacturer
TP-2282 Hytronics Corp. (USA)
44133 Freed Transformer Co (USA)
603995 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
5399 Precision Electronics, Inc (USA)
Related Parts
5310-00-150-3685INTERCHANGEABLE
NUT,PLAIN,ROUND
44133
5133-00-262-2175INTERCHANGEABLE
DRILL,TWIST
5360-00-292-3636INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5399
5950-00-303-5400INTERCHANGEABLE
REACTOR
8018112
5330-00-485-0786INTERCHANGEABLE
SEAL,PLAIN ENCASED
281W450
4730-00-720-0069INTERCHANGEABLE
FITTING,LUBRICATION
5399
5935-00-729-1021INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5360-01-247-1076INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4933-01-273-3071INTERCHANGEABLE
ADAPTER,OPTICAL BORESIGHT,9 MM
5120-01-335-1049INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
6625-01-357-9194INTERCHANGEABLE
TIP,TEST PROD
44133
5930-01-450-6843INTERCHANGEABLE
SWITCH,PRESSURE
603995

Frequently Asked Questions

What is NSN 5950-00-648-3441?

NSN 5950-00-648-3441 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-648-3441?

NSN 5950-00-648-3441 has 4 cross-referenced part numbers: TP-2282 (Hytronics Corp.), 44133 (Freed Transformer Co), 603995 (Lockheed Martin Corporation Div Rms - Mitchel Field), 5399 (Precision Electronics, Inc).

What NSN replaces 5950-00-648-3441?

There are 12 known substitutes for 5950-00-648-3441: 5310-00-150-3685, 5133-00-262-2175, 5360-00-292-3636 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 603995?

Key specifications for 603995: Winding Power Rating: UNABLE TO DECODE198.0 VOLTS-AMPERES SINGLE COMPONENT ALL SECONDARY; Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: UNABLE TO DECODE1.5 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY; Winding Operating Voltage: UNABLE TO DECODE90.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY. 24 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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