The Frame Mode Selector, cataloged under National Stock Number 5820-00-005-7993, is classified within Federal Supply Class 5820 (Radio and Television Communication Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is R & N Investment Properties, L.c. Dba R & N Investments Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5820-00-005-7993 |
| Primary Part Number | A55279-001 |
| Item Name | Frame Mode Selector |
| FSC / FSG | 5820 / 58 — Radio and Television Communication Equipment, Except Airborne |
| Manufacturer | R & N Investment Properties, L.c. Dba R & N Investments Llc |
| Status | ACTIVE |
| FSC Application Data | RADIO SETS,RADIO,EXCEPT NAVIGATION AND HOME TYPES,NONAIRBORNE |
| General Characteristics Item Description | ALUMINUM ALLOY PER FED-QQ-A-591,CHEMICAL FILM PER MIL-C-5541,4.327 IN. O/A LG,3.578 IN. W,4.350 IN. H 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 |
|---|---|
| A55279-001 PRIMARY | R & N Investment Properties, L.c. Dba R & N Investments Llc (USA) |
| Reference | Meaning |
|---|---|
| A55279-001 | 5/9 Secondary reference Radionics Technologies Inc |
| A55279-001 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
NSN 5820-00-005-7993 is a Frame Mode Selector, manufactured by R & N Investment Properties, L.c. Dba R & N Investments Llc, classified under FSC 5820, Radio and Television Communication Equipment, Except Airborne. Status: active.
NSN 5820-00-005-7993 has 1 manufacturer part number on file: A55279-001 (R & N Investment Properties, L.c. Dba R & N Investments Llc).
Key specifications for A55279-001: FSC Application Data: RADIO SETS,RADIO,EXCEPT NAVIGATION AND HOME TYPES,NONAIRBORNE; General Characteristics Item Description: ALUMINUM ALLOY PER FED-QQ-A-591,CHEMICAL FILM PER MIL-C-5541,4.327 IN. O/A LG,3.578 IN. W,4.350 IN. H IN. 2 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.