The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-228-0798, 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 - Mitchel Field. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-228-0798 |
| Primary Part Number | 150974 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 2.688 INCHES NOMINAL IN |
| Body Height | 2.125 INCHES NOMINAL IN |
| Winding Function and Quantity | 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 3700.0 NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Impedance Rating in Ohms | 675.0 NOMINAL SINGLE COMPONENT SECOND PRIMARY |
| Impedance Rating in Ohms | 900.0 NOMINAL SINGLE COMPONENT FIRST PRIMARY |
| Body Length | 2.938 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Primary to Secondary Turn Ratio | 1 TO 1 TO 2 TO 2-3/8 SINGLE COMPONENT |
| Terminal Type and Quantity | 8 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 |
|---|---|
| 150974 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 1651 | 3/9 Design control — primary reference Ferranti Electric Inc |
NSN 5950-00-228-0798 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-228-0798 has 1 manufacturer part number on file: 150974 (Lockheed Martin Corporation Div Rms - Mitchel Field).
3 possible matches (shared part number, not a government interchangeability claim): 3040-00-834-0905, 5331-01-008-4152, 5330-01-513-8782. Verify interchangeability with system specifications before substitution.
Key specifications for 150974: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP. 15 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.