The Transformer,power, cataloged under National Stock Number 5950-01-353-2883, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 25 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-353-2883 |
| Primary Part Number | 123A687-1 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.450 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Body Width | 1.350 INCHES MAXIMUM IN |
| Body Height | 1.400 INCHES MAXIMUM IN |
| Winding Function and Quantity | 2 PRIMARY AND 5 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Body Length | 1.700 INCHES MAXIMUM IN |
| Winding Operating Current | 1.5 AMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Current | 2.9 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Current | 3.2 AMPERES DC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY |
| Winding Operating Current | 40.0 AMPERES DC MAXIMUM SINGLE COMPONENT ALL PRIMARY |
| Winding Operating Current | 7.8 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 200.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.100 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 5.00 DC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Voltage | 12.00 DC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | 12.00 DC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Voltage | 28.00 DC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY |
| Winding Operating Voltage | 5.00 DC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY |
| Terminal Type and Quantity | 9 PIN AND 5 TURRET |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| 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 |
|---|---|
| 123A687-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5950-01-353-2883 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-353-2883 has 1 manufacturer part number on file: 123A687-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 123A687-1: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.450 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 25 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.