The Transformer,power, cataloged under National Stock Number 5950-01-022-0471, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Unitron, Lp Dba Unitron Power Systems, Lp ; Atlas Marine Systems. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-022-0471 |
| Primary Part Number | 158-11555-1 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Unitron, Lp Dba Unitron Power Systems, Lp ; Atlas Marine Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SECOND GROUP |
| Mounting Facility Quantity | 2 FIRST GROUP |
| Mounting Facility Quantity | 4 THIRD GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY THIRD CENTER GROUP IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.920 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP IN |
| Winding Power Rating | 425.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY |
| Winding Power Rating | 600.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) ALL GROUPINGS |
| Body Width | 4.850 INCHES MAXIMUM IN |
| Body Height | 3.640 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.370 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 2.680 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN |
| Nominal Thread Size | 0.138 INCHES ALL GROUPINGS IN |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 5.450 INCHES MAXIMUM IN |
| Winding Operating Current | 18.3 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Current | 3.4 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.920 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.920 INCHES NOMINAL SINGLE MOUNTING FACILITY THIRD CENTER GROUP IN |
| Winding Operating Voltage | 125.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Voltage | 32.80 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL GROUPINGS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 158-11555-1 | Unitron, Lp Dba Unitron Power Systems, Lp ; Atlas Marine Systems (USA) |
| 401201 | Electronic Transformer Corp Div Electronic Transformer Corporation (USA) |
| A744061-1 | General Dynamics Mission Systems, Inc. (USA) |
| TF5RX02ZZ-PAW635 | Magnetika Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-A-744061-1 | 3/2 Design control — primary reference U.S. Government activity |
| TF5RX02ZZ-PAW635 | 5/9 Secondary reference U.S. Government activity |
| 158-11555-1 | 5/9 Secondary reference Unitron Inc |
NSN 5950-01-022-0471 is a Transformer,power, manufactured by Unitron, Lp Dba Unitron Power Systems, Lp ; Atlas Marine Systems, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-022-0471 has 4 manufacturer part numbers on file: 158-11555-1 (Unitron, Lp Dba Unitron Power Systems, Lp ; Atlas Marine Systems), 401201 (Electronic Transformer Corp Div Electronic Transformer Corporation), A744061-1 (General Dynamics Mission Systems, Inc.), TF5RX02ZZ-PAW635 (Magnetika Inc).
3 possible matches (shared part number, not a government interchangeability claim): 2540-01-243-8045, 6210-01-330-2430, 4520-01-480-9299. Verify interchangeability with system specifications before substitution.
Key specifications for 158-11555-1: Mounting Facility Quantity: 4 SECOND GROUP; Mounting Facility Quantity: 2 FIRST GROUP; Mounting Facility Quantity: 4 THIRD GROUP; Inclosure Type: FULLY INCLOSED. 28 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.