The Reactor, cataloged under National Stock Number 5950-00-856-0631, 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 18 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-856-0631 |
| Primary Part Number | 1875877PC26 |
| Item Name | Reactor |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | OPEN |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Inductance Rating | 150.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING |
| Body Width | 1.531 INCHES MAXIMUM IN |
| Body Height | 2.000 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.188 INCHES NOMINAL SINGLE GROUP IN |
| Distance Between Mounting Facility Centers | 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Maximum Operating Temp | 85.0 CELSIUS DEGC |
| Body Length | 2.000 INCHES MAXIMUM IN |
| Winding Operating Current | 700.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING |
| Rating Method | ELECTRICAL SINGLE COMPONENT SINGLE WINDING |
| DC Resistance Rating in Ohms | 10.000 SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Quantity | 1 SINGLE COMPONENT |
| Frequency Rating | 800.0 HERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Inductance Type | FIXED |
| 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 |
|---|---|
| 1851018 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1875877PC26 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1875877PC26 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1875879PC21 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1875879PC21 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1851018 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 953-0479-400 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 953-0479-400 | 5/9 Secondary reference L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division |
NSN 5950-00-856-0631 is a Reactor, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-856-0631 has 6 manufacturer part numbers on file: 1851018 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1875877PC26 (Northrop Grumman Systems Corporation), 1875877PC26 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1875879PC21 (Northrop Grumman Systems Corporation), 1875879PC21 (Lockheed Martin Corporation Div Rms - Mitchel Field) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 6240-01-036-7089. Verify interchangeability with system specifications before substitution.
Key specifications for 1875877PC26: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: OPEN; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Inductance Rating: 150.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING. 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.