The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-347-9952, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microwave Engineering Corporation. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-00-347-9952 |
| Primary Part Number | A11687SH1AND2 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Transformer Function | LINE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | UNTHREADED STUD SINGLE GROUP |
| Body Width | 1.812 INCHES NOMINAL IN |
| Body Height | 2.750 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 36.0 WATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 3440.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 430.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Body Length | 1.938 INCHES NOMINAL IN |
| Winding Operating Current | 280.0 MICROAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Current | 350.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 950.0 HERTZ MINIMUM AND 1.05 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Primary to Secondary Turn Ratio | 1 TO 1-1/4 SINGLE COMPONENT |
| Terminal Type and Quantity | 6 STANDOFF, 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 |
|---|---|
| A11687SH1AND2 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| A11687SH1AND2 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5950-00-347-9952 is a Transformer,audio Frequency, manufactured by Microwave Engineering Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-347-9952 has 1 manufacturer part number on file: A11687SH1AND2 (Microwave Engineering Corporation).
Key specifications for A11687SH1AND2: Transformer Function: LINE; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 19 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.