The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-504-7753, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Espey Mfg and Electronics Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-504-7753 |
| Primary Part Number | GR-31-P |
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Espey Mfg and Electronics Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Winding Power Rating | 50.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | SLOT SINGLE GROUP |
| Body Width | 1.656 INCHES NOMINAL IN |
| Body Height | 2.469 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Length | 2.594 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 26.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Winding Operating Voltage | 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT |
| Terminal Type and Quantity | 3 THREADED HOLE |
| Mounting Slot Width | 0.182 INCHES NOMINAL SINGLE GROUP IN |
| 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 |
|---|---|
| 89SP1460-1 | Northrop Grumman Systems Corporation (USA) |
| GR-31-P PRIMARY | Espey Mfg and Electronics Corp (USA) |
| Reference | Meaning |
|---|---|
| GR-31-P | 3/9 Design control — primary reference U.S. Government activity |
| T1524BH | 5/9 Secondary reference Avionics Specialties, Inc. |
NSN 5950-00-504-7753 is a Transformer,power Autotransforme, manufactured by Espey Mfg and Electronics Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-504-7753 has 2 manufacturer part numbers on file: 89SP1460-1 (Northrop Grumman Systems Corporation), GR-31-P (Espey Mfg and Electronics Corp).
Key specifications for GR-31-P: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Winding Power Rating: 50.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 16 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.