The Reactor, cataloged under National Stock Number 5950-01-083-4181, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sprague Electric Co World Hqs. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-083-4181 |
| Primary Part Number | 42Z903 |
| Item Name | Reactor |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Sprague Electric Co World Hqs |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Body Height | 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN |
| Maximum Operating Temp | 70.0 CELSIUS DEGC |
| Body Length | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Quantity | 2 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 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 |
|---|---|
| 42Z903 | Sprague Electric Co World Hqs (USA) |
| Reference | Meaning |
|---|---|
| NP2889 | 5/9 Secondary reference Nano Pulse Industries Inc |
| 255-100005-001 | 3/9 Design control — primary reference Compro Computer Services, Inc. Dba Compro |
| 501-0135 | 5/9 Secondary reference Bh Electronics, Inc |
NSN 5950-01-083-4181 is a Reactor, manufactured by Sprague Electric Co World Hqs, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-083-4181 has 1 manufacturer part number on file: 42Z903 (Sprague Electric Co World Hqs).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-397-2388. Verify interchangeability with system specifications before substitution.
Key specifications for 42Z903: Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP; Body Width: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN; Body Height: 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN. 10 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.