The Transformer,power, cataloged under National Stock Number 5950-01-161-3348, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is A M I/ Coast Magnetics Inc. Dba Coast Magnetics. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-161-3348 |
| Primary Part Number | 9891 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | A M I/ Coast Magnetics Inc. Dba Coast Magnetics |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 2.200 INCHES NOMINAL IN |
| Body Height | 1.230 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 256.0 WATTS SINGLE COMPONENT |
| Mounting Hole Diameter | 0.140 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.800 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Maximum Operating Temp | 130.0 CELSIUS DEGC |
| Body Length | 2.200 INCHES NOMINAL IN |
| Winding Operating Current | 200.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 20.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 60.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 10.60 AC VOLTS NOMINAL AND 24.60 AC VOLTS NOMINAL AND 35.20 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Voltage | 18.50 AC VOLTS NOMINAL AND 22.10 AC VOLTS NOMINAL AND 36.10 AC VOLTS NOMINAL AND 39.70 AC VOLTS NOMINAL AND 58.20 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Terminal Type and Quantity | 14 PIN |
| 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 |
|---|---|
| 9891 PRIMARY | A M I/ Coast Magnetics Inc. Dba Coast Magnetics (USA) |
| Reference | Meaning |
|---|---|
| 0N249428 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5950-01-161-3348 is a Transformer,power, manufactured by A M I/ Coast Magnetics Inc. Dba Coast Magnetics, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-161-3348 has 1 manufacturer part number on file: 9891 (A M I/ Coast Magnetics Inc. Dba Coast Magnetics).
3 possible matches (shared part number, not a government interchangeability claim): 4240-01-320-1955, 5331-01-374-2437, 6515-01-571-4520. Verify interchangeability with system specifications before substitution.
Key specifications for 9891: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP. 19 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.