The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-982-2490, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ohmite Holding, L.l.c. Dba Ohmite Manufacturing. Government technical data includes 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-982-2490 |
| Primary Part Number | VT8H |
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Ohmite Holding, L.l.c. Dba Ohmite Manufacturing |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 FIRST GROUP |
| Mounting Facility Quantity | 3 SECOND GROUP |
| Inclosure Type | PARTIALLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN |
| Winding Power Rating | 840.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) ALL GROUPINGS |
| Adjustment Device Drive Type | SHAFT SINGLE COMPONENT |
| Body Height | 4.500 INCHES NOMINAL IN |
| Adjustment Method and Quantity | 1 ADJUSTABLE CONTROL SINGLE COMPONENT |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL FIRST GROUP IN |
| Winding Function and Quantity | 1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT |
| Specification/standard Data | 55974-QB91376 MANUFACTURERS SPECIFICATION CONTROL |
| Winding Operating Current | 3.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN |
| Winding Operating Voltage | 0.00 AC VOLTS MINIMUM AND 280.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Winding Operating Voltage | 120.00 AC VOLTS NOMINAL AND 240.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT |
| Terminal Type and Quantity | 7 SCREW |
| Mounting Slot Width | 0.500 INCHES NOMINAL SECOND GROUP IN |
| 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 |
|---|---|
| QB91376-3 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| VT8H PRIMARY | Ohmite Holding, L.l.c. Dba Ohmite Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| QB91376-3 | 7/2 Vendor item drawing reference Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| QB91376-3 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5950-00-982-2490 is a Transformer,power Autotransforme, manufactured by Ohmite Holding, L.l.c. Dba Ohmite Manufacturing, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-982-2490 has 2 manufacturer part numbers on file: QB91376-3 (Aero International, Llc Dba Ams Engineered Solutions), VT8H (Ohmite Holding, L.l.c. Dba Ohmite Manufacturing).
Key specifications for VT8H: Mounting Facility Quantity: 4 FIRST GROUP; Mounting Facility Quantity: 3 SECOND GROUP; Inclosure Type: PARTIALLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN. 21 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.