The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-936-2947, 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 Div Magnetika/phillipsburg Location. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-936-2947 |
| Primary Part Number | MC51899 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Magnetika Inc Div Magnetika/phillipsburg Location |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.560 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 0.480 INCHES MAXIMUM IN |
| Body Height | 1.380 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 100.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Impedance Rating in Ohms | 8200.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Maximum Operating Temp | 125.0 CELSIUS DEGC |
| Body Length | 1.000 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 1.35 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.560 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Thread Quantity Per Inch | 40 SINGLE GROUP |
| Primary to Secondary Turn Ratio | 1 TO 3-45/64 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| 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 |
|---|---|
| MC51899 PRIMARY | Magnetika Inc Div Magnetika/phillipsburg Location (USA) |
| PEI 6356 | Precision Electronics, Inc (USA) |
| Reference | Meaning |
|---|---|
| 54130547 | 1/2 Source control — Government-approved source U.S. Government activity |
| MC51899 | 5/9 Secondary reference Opt Industries Inc Div of Electronika Inc |
NSN 5950-00-936-2947 is a Transformer,audio Frequency, manufactured by Magnetika Inc Div Magnetika/phillipsburg Location, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-936-2947 has 2 manufacturer part numbers on file: MC51899 (Magnetika Inc Div Magnetika/phillipsburg Location), PEI 6356 (Precision Electronics, Inc).
Key specifications for MC51899: Overall Height: 1.725 INCHES NOMINAL IN; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.560 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP 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.