The Transformer,power, cataloged under National Stock Number 5950-00-250-9360, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Tranex, Inc.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-250-9360 |
| Primary Part Number | 4-1871 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Tranex, Inc. |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.340 INCHES MINIMUM AND 3.400 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | SLOT SINGLE GROUP |
| Body Width | 4.000 INCHES MAXIMUM IN |
| Winding Function and Quantity | 2 PRIMARY AND 3 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | INTERNALLY SHIELDED SINGLE COMPONENT |
| Winding Operating Current | 20.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Current | 25.0 MILLIAMPERES DC MINIMUM AND 40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Current | 75.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY |
| Winding Operating Voltage | 280.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | 900.00 AC VOLTS NOMINAL AND 1.15 AC KILOVOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Voltage | 94.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Terminal Type and Quantity | 11 TAB, SOLDER LUG |
| Mounting Slot Width | 0.150 INCHES MINIMUM AND 0.210 INCHES MAXIMUM SINGLE GROUP IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4-1871 PRIMARY | Tranex, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 951635 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 91-210 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5950-00-250-9360 is a Transformer,power, manufactured by Tranex, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-250-9360 has 1 manufacturer part number on file: 4-1871 (Tranex, Inc.).
5 possible matches (shared part number, not a government interchangeability claim): 3040-00-336-3572, 5905-00-590-2208, 4710-00-675-3237. Verify interchangeability with system specifications before substitution.
Key specifications for 4-1871: Overall Height: 4.730 INCHES MAXIMUM IN; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.340 INCHES MINIMUM AND 3.400 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 20 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.
NSN 5950-00-250-9360 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.