The Transformer,current, cataloged under National Stock Number 5950-00-247-8758, 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 Dba Electronic Systems. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-247-8758 |
| Primary Part Number | 990C103H03 |
| Item Name | Transformer,current |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Electronic Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 3 SINGLE GROUP3 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSEDFULLY INCLOSED |
| Body Outside Diameter | 3.510 INCHES MAXIMUM3.510 INCHES MAXIMUM IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENTSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUPUNTHREADED HOLE(S) SINGLE GROUP |
| Mounting Hole Diameter | 0.150 INCHES NOMINAL SINGLE GROUP0.150 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY SINGLE COMPONENT1 PRIMARY SINGLE COMPONENT |
| Installation for Which Designed | INDOOR NONPORTABLEINDOOR NONPORTABLE |
| Body Length | 1.660 INCHES MAXIMUM1.660 INCHES MAXIMUM IN |
| Mounting Bolt Circle Diameter | 3.160 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP3.160 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Current | 5.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY5.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHEDNOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 2 THREADED STUD2 THREADED STUD |
| 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 |
|---|---|
| 3113 | Jewell Instruments Llc (USA) |
| 990C103H03 PRIMARY | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
| 637E84-1 | Phaostron Instrument and Electronic Company (USA) |
| Reference | Meaning |
|---|---|
| A10910 | 5/9 Secondary reference E I L Instruments Inc |
NSN 5950-00-247-8758 is a Transformer,current, manufactured by Northrop Grumman Systems Corporation Dba Electronic Systems, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-247-8758 has 3 manufacturer part numbers on file: 3113 (Jewell Instruments Llc), 990C103H03 (Northrop Grumman Systems Corporation Dba Electronic Systems), 637E84-1 (Phaostron Instrument and Electronic Company).
3 possible matches (shared part number, not a government interchangeability claim): 3120-00-716-1039, 4730-00-822-6860, 5998-01-133-8572. Verify interchangeability with system specifications before substitution.
Key specifications for 990C103H03: Mounting Facility Quantity: 3 SINGLE GROUP3 SINGLE GROUP; Inclosure Type: FULLY INCLOSEDFULLY INCLOSED; Body Outside Diameter: 3.510 INCHES MAXIMUM3.510 INCHES MAXIMUM IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENTSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 14 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.