The Transformer,power, cataloged under National Stock Number 5950-00-491-2075, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hammond Mfg Co Ltd. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5950-00-491-2075 |
| Primary Part Number | 222D |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Hammond Mfg Co Ltd |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | OPEN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Power Rating | 20.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 1.200 INCHES NOMINAL IN |
| Body Height | 1.400 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 1.600 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 26.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Voltage | 99.70 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 7 TAB, SOLDER LUG |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5950-00-491-2075 is a Transformer,power, manufactured by Hammond Mfg Co Ltd, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-491-2075 has 2 manufacturer part numbers on file: 51791-1 (L3harris Mas Inc Div L3harris Mas Inc.), 222D (Hammond Mfg Co Ltd).
1 possible match (shared part number, not a government interchangeability claim): 6695-00-877-5774. Verify interchangeability with system specifications before substitution.
Key specifications for 222D: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: OPEN; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Power Rating: 20.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY. 17 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.