The Transformer,power, cataloged under National Stock Number 5950-01-166-2931, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-166-2931 |
| Primary Part Number | 662-0638-010 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 8 SINGLE GROUP |
| Inclosure Type | OPEN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.000 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 | 1.750 INCHES MAXIMUM IN |
| Body Height | 1.940 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Maximum Operating Temp | 125.0 CELSIUS DEGC |
| Body Length | 2.400 INCHES MAXIMUM IN |
| Winding Operating Current | 1.2 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Current | 300.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY |
| Winding Operating Current | 400.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Current | 600.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Winding Operating Voltage | 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 13 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 |
|---|---|
| 662-0638-010 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| R103940B | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-166-2931 is a Transformer,power, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-166-2931 has 1 manufacturer part number on file: 662-0638-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 662-0638-010: Mounting Facility Quantity: 8 SINGLE GROUP; Inclosure Type: OPEN; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 22 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.