The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-706-8729, 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 13 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5950-00-706-8729 |
| Primary Part Number | A740-44REVD |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 2.031 INCHES NOMINAL IN |
| Mounting Method | CORE AND THREADED STUD(S) SINGLE GROUP |
| Body Height | 1.120 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.190 INCHES SINGLE GROUP IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Primary to Secondary Turn Ratio | 1 TO 50 SINGLE COMPONENT |
| Terminal Type and Quantity | 5 WIRE LEAD |
| Thread Series Designator | UNF 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 |
|---|---|
| A740-4 | Microwave Engineering Corporation (USA) |
| A740-44 | Microwave Engineering Corporation (USA) |
| A740-44REVB | Microwave Engineering Corporation (USA) |
| A740-44REVD PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| A740-4 | 5/9 Secondary reference U.S. Government activity |
| A740-44REVD | 5/9 Secondary reference U.S. Government activity |
| A740-44 | 5/9 Secondary reference U.S. Government activity |
| A740-44REVB | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-706-8729 is a Transformer,audio Frequency, manufactured by Microwave Engineering Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-706-8729 has 4 manufacturer part numbers on file: A740-4 (Microwave Engineering Corporation), A740-44 (Microwave Engineering Corporation), A740-44REVB (Microwave Engineering Corporation), A740-44REVD (Microwave Engineering Corporation).
Key specifications for A740-44REVD: Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 2.031 INCHES NOMINAL IN; Mounting Method: CORE AND THREADED STUD(S) SINGLE GROUP. 13 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.