The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-991-1232, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-991-1232 |
| Primary Part Number | 1800643-2 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | THREADED BUSHING SINGLE GROUP |
| Body Width | 0.937 INCHES MAXIMUM IN |
| Body Height | 1.937 INCHES MAXIMUM IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | EXTERNAL INCLOSURE SINGLE COMPONENT |
| Nominal Thread Size | 0.250 INCHES SINGLE GROUP IN |
| Body Length | 0.937 INCHES MAXIMUM IN |
| Frequency Rating | 0.5 MEGAHERTZ NOMINAL SINGLE COMPONENT |
| Thread Quantity Per Inch | 28 SINGLE GROUP |
| Primary to Secondary Turn Ratio | 1 TO 1 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 TURRET |
| 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 |
|---|---|
| 1800643-2 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5950-00-991-1232 is a Transformer,audio Frequency, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-991-1232 has 1 manufacturer part number on file: 1800643-2 (Northrop Grumman Systems Corporation).
Key specifications for 1800643-2: Overall Height: 3.937 INCHES MAXIMUM IN; Inclosure Type: FULLY INCLOSED; Mounting Method: THREADED BUSHING SINGLE GROUP; Body Width: 0.937 INCHES MAXIMUM IN. 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.