The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-963-0299, 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 Dba Northrop Grumman Systems Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-963-0299 |
| Primary Part Number | 911431-4 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | TAB SINGLE GROUP |
| Body Width | 0.880 INCHES NOMINAL IN |
| Body Height | 0.880 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 27.0 DECIBELS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 210.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Body Length | 1.160 INCHES NOMINAL IN |
| Winding Operating Current | 30.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Mounting Tab Width | 0.020 INCHES NOMINAL IN |
| Frequency Rating | 300.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 5 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 |
|---|---|
| 911431-4 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 16A22 | 5/9 Secondary reference A.e.york, Llc |
| 15672 | C/1 Advisory reference — outside the item-of-supply concept Robert M. Hadley Company, Inc. |
NSN 5950-00-963-0299 is a Transformer,audio Frequency, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-963-0299 has 1 manufacturer part number on file: 911431-4 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5310-00-987-7805, 4820-01-026-2581, 2540-01-602-8747. Verify interchangeability with system specifications before substitution.
Key specifications for 911431-4: Inclosure Type: FULLY INCLOSED; Mounting Method: TAB SINGLE GROUP; Body Width: 0.880 INCHES NOMINAL IN; Body Height: 0.880 INCHES NOMINAL IN. 14 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.