The Detector Limiter Band O, cataloged under National Stock Number 5865-01-049-8000, is classified within Federal Supply Class 5865 (Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Frequency Electronics Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5865-01-049-8000 |
| Primary Part Number | A9X446B |
| Item Name | Detector Limiter Band O |
| FSC / FSG | 5865 / 58 — Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment |
| Manufacturer | Frequency Electronics Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 1.310 IN LG; OUTPUT POLARITY POSITIVE,OUTPUT VOLTAGE 12.5 MV TO 25 MV FOR -20DBM RF INPUT WITH A 2.2K OHMS VIDEO LOAD,WEIGHT 1 OZ,OPERATING TEMPERATURE RANGE -55 DEGREE CELSIUS TO +100 DEGREE CELSIUS OZ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A9X446B PRIMARY | Frequency Electronics Inc (USA) |
| 308906-1 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| R3496 | Microphase Corp (USA) |
| Reference | Meaning |
|---|---|
| A9X446B | 5/9 Secondary reference Fei Microwave Inc |
| 308906-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 308906-1 | 5/9 Secondary reference Microphase Corp |
NSN 5865-01-049-8000 is a Detector Limiter Band O, manufactured by Frequency Electronics Inc, classified under FSC 5865, Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment. Status: active.
NSN 5865-01-049-8000 has 3 manufacturer part numbers on file: A9X446B (Frequency Electronics Inc), 308906-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), R3496 (Microphase Corp).
1 possible match (shared part number, not a government interchangeability claim): 4710-01-577-7228. Verify interchangeability with system specifications before substitution.
Key specifications for A9X446B: General Characteristics Item Description: 1.310 IN LG; OUTPUT POLARITY POSITIVE,OUTPUT VOLTAGE 12.5 MV TO 25 MV FOR -20DBM RF INPUT WITH A 2.2K OHMS VIDEO LOAD,WEIGHT 1 OZ,OPERATING TEMPERATURE RANGE -55 DEGREE CELSIUS TO +100 DEGREE CELSIUS OZ; End Item Identification: AN/ALR-62(V). 1 specification is 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 5865-01-049-8000 has DEMIL Code D. 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.