The Frequency Reference Unit, cataloged under National Stock Number 1420-01-381-5853, is classified within Federal Supply Class 1420 (Guided Missile Components) of the Guided Missiles group. The manufacturer of record is Raytheon Company Dba Raytheon Co. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1420-01-381-5853 |
| Primary Part Number | 3820264-100 |
| Item Name | Frequency Reference Unit |
| FSC / FSG | 1420 / 14 — Guided Missile Components |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL P — Demil Prior To Sale/Transfer |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3820264-100 | Raytheon Company Dba Raytheon Co (USA) |
| 3820264-150 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 3820264-100 | 3/2 Design control — primary reference U.S. Government activity |
| 3820264-100 | 5/9 Secondary reference Raytheon Company Div Corp |
| 3820264-150 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 1420-01-381-5853 is a Frequency Reference Unit, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 1420, Guided Missile Components. Status: active.
NSN 1420-01-381-5853 has 2 manufacturer part numbers on file: 3820264-100 (Raytheon Company Dba Raytheon Co), 3820264-150 (Raytheon Company Dba Raytheon Co).
Key specifications for 3820264-100: End Item Identification: AIM-120 AMRAAM MISSILE. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1420-01-381-5853 has DEMIL Code P. Demilitarization may be required before disposal or transfer to non-military entities.
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.