The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-974-6581, 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. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-00-974-6581 |
| Primary Part Number | 827557 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Inclosure Type | HERMETICALLY SEALED |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 0.610 INCHES NOMINAL IN |
| Body Height | 0.610 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | EXTERNAL INCLOSURE SINGLE COMPONENT |
| Body Length | 0.671 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 12.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Primary to Secondary Turn Ratio | 1 TO 1 SINGLE COMPONENT |
| Terminal Type and Quantity | 6 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 |
|---|---|
| 827557 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 827557 | 7/2 Vendor item drawing reference L3 Aviation Products, Inc. Dba L3 Technologies |
NSN 5950-00-974-6581 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-974-6581 has 1 manufacturer part number on file: 827557 (Lockheed Martin Corporation).
Key specifications for 827557: Inclosure Type: HERMETICALLY SEALED; Mounting Method: TERMINAL SINGLE GROUP; Body Width: 0.610 INCHES NOMINAL IN; Body Height: 0.610 INCHES NOMINAL IN. 11 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.