The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-646-3598, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-646-3598 |
| Primary Part Number | 821615 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Transformer Function | INPUT |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Body Outside Diameter | 0.938 INCHES NOMINAL IN |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Mounting Hole Diameter | 0.109 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 500.0 NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Impedance Rating in Ohms | 500.0 NOMINAL SINGLE COMPONENT ALL PRIMARY |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Length | 1.438 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Primary to Secondary Turn Ratio | 1 TO 12-3/5 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 |
|---|---|
| 821615 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5950-00-646-3598 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-646-3598 has 1 manufacturer part number on file: 821615 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 821615: Transformer Function: INPUT; Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Body Outside Diameter: 0.938 INCHES NOMINAL IN. 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.