The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-198-4004, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Elcos. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-01-198-4004 |
| Primary Part Number | PICO-693 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Elcos |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.350 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Maximum Transformer Power Rating | 500.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 60.0 MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Impedance Rating in Ohms | 600.0 MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 0.410 INCHES MAXIMUM IN |
| Winding Operating Current | 3.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 1.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 6 WIRE LEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5950-01-198-4004 is a Transformer,audio Frequency, manufactured by Elcos, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-198-4004 has 2 manufacturer part numbers on file: PICO-693 (Elcos), PICO-693 (Pico Electronics Inc).
Key specifications for PICO-693: Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.350 INCHES MAXIMUM IN; Mounting Method: TERMINAL SINGLE GROUP; Maximum Transformer Power Rating: 500.0 MILLIWATTS SINGLE COMPONENT. 13 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.
NSN 5950-01-198-4004 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.