The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-078-1810, 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. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-078-1810 |
| Primary Part Number | 77C701521-1 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | TERMINAL SINGLE GROUP |
| Inductance Rating | 800.00 MICROHENRIES MINIMUM AND 1.20 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Body Width | 0.500 INCHES NOMINAL IN |
| Body Height | 0.500 INCHES NOMINAL IN |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 0.800 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 5 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 |
|---|---|
| 77C701521-1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| G10677 | 5/9 Secondary reference Bivar Inc |
| 6-00220-1 | 5/9 Secondary reference West Cap Arizona |
NSN 5950-00-078-1810 is a Transformer,radio Frequency, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-078-1810 has 1 manufacturer part number on file: 77C701521-1 (Lockheed Martin Corporation Div Rms).
1 possible match (shared part number, not a government interchangeability claim): 5815-00-916-8676. Verify interchangeability with system specifications before substitution.
Key specifications for 77C701521-1: Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP; Inductance Rating: 800.00 MICROHENRIES MINIMUM AND 1.20 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Adjustment Device Drive Type: SLOTTED SCREW SINGLE COMPONENT. 12 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.