The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-658-5779, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 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 | 5950-00-658-5779 |
| Primary Part Number | C-554410 |
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Mounting Facility Quantity | 3 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Winding Power Rating | 1.275 KILOVOLT-AMPERES SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Body Outside Diameter | 4.625 INCHES NOMINAL IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Adjustment Device Drive Type | SHAFT SINGLE COMPONENT |
| Adjustment Method and Quantity | 1 ADJUSTABLE CONTROL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to the Base of an Isosceles Triangle | 4.330 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle | 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Hole Diameter | 0.309 INCHES MAXIMUM SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT |
| Body Length | 5.156 INCHES NOMINAL IN |
| Winding Operating Current | 7.5 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT |
| Winding Operating Voltage | 0.00 AC VOLTS MINIMUM AND 170.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Terminal Type and Quantity | 3 PIN |
| 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 |
|---|---|
| 528-22-3PCALL | L3 Technologies, Inc. Div L3 Keo (USA) |
| 528-15PC528-22-3 | L3 Technologies, Inc. Div L3 Keo (USA) |
| C-554410 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 116-1072T602 | Superior Electric Holding Group Llc Div Specialty Product Technologies (USA) |
| 528-22-3 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 116-1072 | Superior Electric Holding Group Llc Div Specialty Product Technologies (USA) |
| 528-15REVBPC528-22-2 | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 5950-00-658-5779 is a Transformer,power Autotransforme, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-658-5779 has 7 manufacturer part numbers on file: 528-22-3PCALL (L3 Technologies, Inc. Div L3 Keo), 528-15PC528-22-3 (L3 Technologies, Inc. Div L3 Keo), C-554410 (L3 Technologies, Inc. Div L3 Keo), 116-1072T602 (Superior Electric Holding Group Llc Div Specialty Product Technologies), 528-22-3 (L3 Technologies, Inc. Div L3 Keo) and 2 more.
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-233-2172, 4720-01-496-9271. Verify interchangeability with system specifications before substitution.
Key specifications for C-554410: Mounting Facility Quantity: 3 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Winding Power Rating: 1.275 KILOVOLT-AMPERES SINGLE COMPONENT SINGLE PRIMARY OUTPUT; Body Outside Diameter: 4.625 INCHES NOMINAL IN. 19 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.