The Core Toroid, cataloged under National Stock Number 5950-01-088-2987, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Spang Power Control. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-088-2987 |
| Primary Part Number | YJ41003TC |
| Item Name | Core Toroid |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Spang Power Control |
| Status | ACTIVE |
| General Characteristics Item Description | FERRITE MAGNETIC MATERIAL,COATEDWITH A VACUUM-DEPOSITED MATERIAL,PARALYNE; MOISTURE RESISTANCE TO ORGANIC SOLVENTS AND ACID BASES; OVERALL DIA 0.375 IN.; ID 0.187 IN.; 0.125 IN. HGT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| YJ41003TC PRIMARY | Spang Power Control (USA) |
| Reference | Meaning |
|---|---|
| 1040401 | 5/9 Secondary reference Itt Telecom Products Corp Network Systems Div |
NSN 5950-01-088-2987 is a Core Toroid, manufactured by Spang Power Control, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-088-2987 has 1 manufacturer part number on file: YJ41003TC (Spang Power Control).
2 possible matches (shared part number, not a government interchangeability claim): 1680-01-445-4602, 2840-01-481-3110. Verify interchangeability with system specifications before substitution.
Key specifications for YJ41003TC: General Characteristics Item Description: FERRITE MAGNETIC MATERIAL,COATEDWITH A VACUUM-DEPOSITED MATERIAL,PARALYNE; MOISTURE RESISTANCE TO ORGANIC SOLVENTS AND ACID BASES; OVERALL DIA 0.375 IN.; ID 0.187 IN.; 0.125 IN. HGT IN; End Item Identification: AUTOMATED RADAR TERMINAL SYSTEM 3A (ARTS3A) A. 1 specification is 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.