The Transformer,power, cataloged under National Stock Number 5950-00-978-4865, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Epco Products Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-978-4865 |
| Primary Part Number | EP2934 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Epco Products Co |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Body Height | 2.813 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 50.0 VOLT-AMPERE SINGLE COMPONENT |
| Mounting Hole Diameter | 0.281 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Specification/standard Data | 80020-320220 GOVERNMENT SPECIFICATION |
| Body Length | 2.803 INCHES MINIMUM AND 2.823 INCHES MAXIMUM IN |
| Winding Operating Current | 1.6 AMPERES AC MINIMUM AND 1.9 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Current | 417.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 26.00 AC VOLTS NOMINAL AND 28.00 AC VOLTS NOMINAL AND 30.00 AC VOLTS NOMINAL AND 32.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Terminal Type and Quantity | 7 TAB, SOLDER LUG |
| 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 |
|---|---|
| EP2934 PRIMARY | Epco Products Co (USA) |
| Reference | Meaning |
|---|---|
| 320220-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5950-00-978-4865 is a Transformer,power, manufactured by Epco Products Co, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-978-4865 has 1 manufacturer part number on file: EP2934 (Epco Products Co).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-127-8835. Verify interchangeability with system specifications before substitution.
Key specifications for EP2934: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 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.
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.