The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-231-4767, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-231-4767 |
| Primary Part Number | W130540-502 3 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | L3 Technologies, Inc. Div Communication Systems-East |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 2.250 INCHES NOMINAL IN |
| Body Height | 2.469 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 2.0 WATTS SINGLE COMPONENT |
| Mounting Hole Diameter | 0.188 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 100.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Impedance Rating in Ohms | 10000.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Body Length | 2.469 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 1.0 KILOHERTZ MINIMUM AND 1.75 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Primary to Secondary Turn Ratio | 1 TO 1 TO 10 SINGLE COMPONENT |
| Terminal Type and Quantity | 9 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 |
|---|---|
| W130540-502 3 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| W130810ITEM110 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| K900916-501 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| W130680ITEM97 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| W130557SUB7ITEM97 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| Reference | Meaning |
|---|---|
| W130810ITEM110 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| W130680ITEM97 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| W130540-502PC3 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| W130557SUB7ITEM97 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| 313-6502-13889PC3 | 3/2 Design control — primary reference U.S. Government activity |
| 435-6502-465453ITEM110 | 3/2 Design control — primary reference U.S. Government activity |
| 285-65-377ITEM97 | 3/2 Design control — primary reference U.S. Government activity |
| K900916-501 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| W130699SUB10ITEM110 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5950-00-231-4767 is a Transformer,audio Frequency, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-231-4767 has 5 manufacturer part numbers on file: W130540-502 3 (L3 Technologies, Inc. Div Communication Systems-East), W130810ITEM110 (L3 Technologies, Inc. Div Communication Systems-East), K900916-501 (L3 Technologies, Inc. Div Communication Systems-East), W130680ITEM97 (L3 Technologies, Inc. Div Communication Systems-East), W130557SUB7ITEM97 (L3 Technologies, Inc. Div Communication Systems-East).
Key specifications for W130540-502 3: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP. 18 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.