The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-820-1498, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Magnetika Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-820-1498 |
| Primary Part Number | PA-3893 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Magnetika Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 ALL GROUPINGS |
| Inclosure Type | HERMETICALLY SEALED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM SINGLE MOUNTING FACILITY ALL CENTER GROUPINGS IN |
| Mounting Method | THREADED HOLE(S) ALL GROUPINGS |
| Body Width | 1.560 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN |
| Body Height | 2.250 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 3.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 60.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT |
| Nominal Thread Size | 0.138 INCHES ALL GROUPINGS IN |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 1.560 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN |
| Winding Operating Current | 60.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM SINGLE MOUNTING FACILITY ALL CENTER GROUPINGS IN |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL GROUPINGS |
| 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 |
|---|---|
| PA-3893 | Magnetika Inc (USA) |
| TS-1189 | Magnetic Components Inc (USA) |
| Reference | Meaning |
|---|---|
| 561218 | 5/9 Secondary reference U.S. Government activity |
| 722840-001 | 5/9 Secondary reference U.S. Government activity |
| PA-3893 | 5/9 Secondary reference U.S. Government activity |
| SM-C-417145 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5950-00-820-1498 is a Transformer,audio Frequency, manufactured by Magnetika Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-820-1498 has 2 manufacturer part numbers on file: PA-3893 (Magnetika Inc), TS-1189 (Magnetic Components Inc).
Key specifications for PA-3893: Overall Height: 2.820 INCHES MAXIMUM IN; Mounting Facility Quantity: 4 ALL GROUPINGS; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM SINGLE MOUNTING FACILITY ALL CENTER GROUPINGS IN. 20 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.