The Transformer,power, cataloged under National Stock Number 5950-01-257-9287, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5950-01-257-9287 |
| Primary Part Number | 245B955H01 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | CANCELLED |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Operating Voltage | 28.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | 21.50 AC VOLTS MINIMUM AND 23.00 AC VOLTS MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Nominal Thread Size | 0.164 INCHES FIRST GROUP IN |
| Inclosure Type | FULLY INCLOSED |
| Winding Operating Current | 0.53 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) FIRST GROUP |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Mounting Facility Quantity | 4 ALL GROUPINGS |
| Mounting Method | UNTHREADED HOLE(S) SECOND GROUP |
| Winding Operating Voltage | 200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Mounting Hole Diameter | 0.201 INCHES NOMINAL SECOND GROUP IN |
| Winding Operating Current | 0.53 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY |
| Mounting Method | THREADED STUD(S) FIRST GROUP |
| Winding Operating Current | 0.9 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.880 INCHES NOMINAL ALL MOUNTING FACILITIES SINGLE CENTER GROUP IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.630 INCHES NOMINAL ALL MOUNTING FACILITIES SINGLE CENTER GROUP IN |
| Terminal Type and Quantity | 12 THREADED STUD |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Input-Output Phase Relationship | THREE PHASE TO THREE PHASE SINGLE COMPONENT |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 245B955H01 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 740102PC95 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
| TF4SX02YY | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5950-01-257-9287 is a Transformer,power, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5950 (No Item Name Available). Status: cancelled.
NSN 5950-01-257-9287 has 3 cross-referenced part numbers: 245B955H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 740102PC95 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), TF4SX02YY (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 2 known substitutes for 5950-01-257-9287: 5950-00-061-2695, 5950-01-275-2635. Verify interchangeability with system specifications before substitution.
Key specifications for 245B955H01: Reliability Indicator: NOT ESTABLISHED; Overall Length: 3.720 INCHES NOMINAL IN; Winding Operating Voltage: 28.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY; Winding Operating Voltage: 21.50 AC VOLTS MINIMUM AND 23.00 AC VOLTS MAXIMUM SINGLE COMPONENT FIRST SECONDARY. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 5950-01-257-9287 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.