The Transformer,power, cataloged under National Stock Number 5950-00-078-3273, 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 Rms. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-078-3273 |
| Primary Part Number | 77C708679P1 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 4.690 INCHES NOMINAL IN |
| Body Height | 4.000 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT |
| Nominal Thread Size | 0.250 INCHES SINGLE GROUP IN |
| Body Length | 6.000 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Test Data Document | 03538-77C708679 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Thread Quantity Per Inch | 20 SINGLE GROUP |
| Winding Operating Voltage | 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 22.20 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| 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 |
|---|---|
| 77C708679P1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 77C708679-1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 77C708679P001 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
NSN 5950-00-078-3273 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-078-3273 has 2 manufacturer part numbers on file: 77C708679P1 (Lockheed Martin Corporation Div Rms), 77C708679-1 (Lockheed Martin Corporation Div Rms).
Key specifications for 77C708679P1: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 18 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.