The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-519-7877, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Elbitamerica, Inc. Dba Elbitamerica Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-519-7877 |
| Primary Part Number | X1232-4B |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Elbitamerica, Inc. Dba Elbitamerica Inc |
| Status | ACTIVE |
| Transformer Function | INPUT |
| Inclosure Type | OPEN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 0.812 INCHES MAXIMUM IN |
| Body Height | 0.828 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 10.0 DECIBELS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 1000000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Impedance Rating in Ohms | 10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 1.062 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 4 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 |
| Part Number | Manufacturer |
|---|---|
| X1232-4B PRIMARY | Elbitamerica, Inc. Dba Elbitamerica Inc (USA) |
| E689 | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| Reference | Meaning |
|---|---|
| X1232-4B | 5/9 Secondary reference U.S. Government activity |
| X1232-4B | 5/9 Secondary reference Microtran Co Inc |
| 68-40018-2001 | 5/9 Secondary reference U.S. Government activity |
| M1043 | 5/9 Secondary reference Microtran Co Inc |
NSN 5950-00-519-7877 is a Transformer,audio Frequency, manufactured by Elbitamerica, Inc. Dba Elbitamerica Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-519-7877 has 2 manufacturer part numbers on file: X1232-4B (Elbitamerica, Inc. Dba Elbitamerica Inc), E689 (Keytronics, Inc. Div Api Technologies Corp- Magnetics).
3 possible matches (shared part number, not a government interchangeability claim): 5950-01-018-2363, 5340-01-317-9538, 5950-01-393-4150. Verify interchangeability with system specifications before substitution.
Key specifications for X1232-4B: Transformer Function: INPUT; Inclosure Type: OPEN; Mounting Method: TERMINAL SINGLE GROUP; Body Width: 0.812 INCHES MAXIMUM IN. 14 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 5950-00-519-7877 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.