The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-133-4936, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Spencer Industries Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-01-133-4936 |
| Primary Part Number | 393800 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Spencer Industries Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 0.610 INCHES NOMINAL IN |
| Body Height | 0.700 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM SINGLE GROUP IN |
| 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 | 37.5 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Features Provided | TINNED WIRE LEADS |
| Distance Between Mounting Facility Centers | 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Maximum Operating Temp | 130.0 CELSIUS DEGC |
| Body Length | 0.820 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 1.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Test Data Document | 80045-TS393810 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Primary to Secondary Turn Ratio | 1 TO 4 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 WIRE LEAD |
| 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 |
|---|---|
| 393800 PRIMARY | Spencer Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 393800 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-133-4936 is a Transformer,audio Frequency, manufactured by Spencer Industries Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-133-4936 has 1 manufacturer part number on file: 393800 (Spencer Industries Inc).
Key specifications for 393800: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP; Body Width: 0.610 INCHES NOMINAL IN. 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.