The Transformer,power, cataloged under National Stock Number 5950-01-217-3961, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Pico Electronics Inc. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-217-3961 |
| Primary Part Number | S21660 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Pico Electronics Inc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.750 INCHES MAXIMUM IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | TERMINAL SINGLE GROUP |
| Maximum Transformer Power Rating | 1.7 VOLT-AMPERE SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Maximum Operating Temp | 130.0 CELSIUS DEGC |
| Body Length | 0.520 INCHES MAXIMUM IN |
| Mounting Bolt Circle Diameter | 0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Current | 211.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 4.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Terminal Type and Quantity | 6 WIRE LEAD |
| 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 |
|---|---|
| S21660 PRIMARY | Pico Electronics Inc (USA) |
NSN 5950-01-217-3961 is a Transformer,power, manufactured by Pico Electronics Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-217-3961 has 1 manufacturer part number on file: S21660 (Pico Electronics Inc).
Key specifications for S21660: Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.750 INCHES MAXIMUM IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: TERMINAL SINGLE GROUP. 15 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.