The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-648-5846, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-648-5846 |
| Primary Part Number | 668718 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Body Outside Diameter | 1.562 INCHES MAXIMUM IN |
| Mounting Method | BRACKET(S) SINGLE GROUP |
| Winding Function and Quantity | 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 37500.0 NOMINAL SINGLE COMPONENT FIRST PRIMARY |
| Impedance Rating in Ohms | 37500.0 NOMINAL SINGLE COMPONENT SECOND PRIMARY |
| Impedance Rating in Ohms | 75000.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Impedance Rating in Ohms | 75000.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 2.188 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Primary to Secondary Turn Ratio | 1 TO 1-9/64 SINGLE COMPONENT |
| Terminal Type and Quantity | 9 WIRE HOOK |
| 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 |
|---|---|
| 668718 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 668718TYPESCJ4190 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| SCJ4190 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5950-00-648-5846 is a Transformer,audio Frequency, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-648-5846 has 1 manufacturer part number on file: 668718 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4440-01-592-4268. Verify interchangeability with system specifications before substitution.
Key specifications for 668718: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Body Outside Diameter: 1.562 INCHES MAXIMUM IN; Mounting Method: BRACKET(S) SINGLE GROUP. 16 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.