The Coil,radio Frequency, cataloged under National Stock Number 5950-00-646-1799, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-646-1799 |
| Primary Part Number | 845090 |
| Item Name | Coil,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Quality Factor | 35 MINIMUM AND 45 MAXIMUM SINGLE COMPONENT SINGLE WINDING |
| Overall Diameter | 0.344 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.250 INCHES NOMINAL IN |
| Turn Quantity | 23 SINGLE COMPONENT SINGLE WINDING |
| Mounting Method | THREADED BUSHING SINGLE GROUP |
| Inductance Rating | 2.50 MICROHENRIES MINIMUM AND 3.30 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Winding Conductor Size | 0.01003 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Nominal Thread Size | 0.164 INCHES SINGLE GROUP IN |
| Body Length | 0.844 INCHES NOMINAL IN |
| Rating Method | ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Core Construction | POWDERED SINGLE COMPONENT |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| 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 |
|---|---|
| 845090 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 845090REVD PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 845090 | C/1 Advisory reference — outside the item-of-supply concept Alliant Techsystems Operations Llc Div Defense Electronic Systems |
| B845090 | 5/9 Secondary reference U.S. Government activity |
| 1669175 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5950-00-646-1799 is a Coil,radio Frequency, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-646-1799 has 2 manufacturer part numbers on file: 845090 (Lockheed Martin Corporation Div Rms - Mitchel Field), 845090REVD (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 845090: Inclosure Type: FULLY INCLOSED; Quality Factor: 35 MINIMUM AND 45 MAXIMUM SINGLE COMPONENT SINGLE WINDING; Overall Diameter: 0.344 INCHES MAXIMUM IN; Body Outside Diameter: 0.250 INCHES NOMINAL IN. 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.