The Limiter,power, cataloged under National Stock Number 5840-01-127-3263, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Frequency Electronics Inc. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5840-01-127-3263 |
| Primary Part Number | A9L125B |
| Item Name | Limiter,power |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | Frequency Electronics Inc |
| Status | ACTIVE |
| General Characteristics Item Description | FEATURE: NARROW BAND WITH DC RETURN; FREQUENCY RANGE: 8.0 TO 16.0 GHZ; INSERTION LOSS: 1.8 DB; MAXIMUM LEAKAGE (1 WATT CW INPUT): 60.0 MW,17.8 DBM; LIMITING THRESHOLD: 8.0 MW,9.0 DBM;PEAK POWER: 70.0 W; OPERATING TEMPERATURE: M65.0 C/P150.0; SHOCK: 1500.0 G,0.5 MSEC,50.0 G,11.0 MSEC; VIBRATION: 20 G,100.0 TO 2000.0 HZ; ACCELERATION: 2000.0 G; LENGTH: 1.040 IN. MIN,1.080 IN. MAX; DIAMETER: 0.310 IN. NOM GHz |
| Storage Temp Range | -65.0 TO 150.0 CELSIUS DEGC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A9L125-B1 | Frequency Electronics Inc (USA) |
| A4/712220 | Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems (GBR) |
| A9L125B PRIMARY | Frequency Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| A4/712220 | 5/9 Secondary reference Racal Radar Defence Systems Ltd |
| A9L125B | 3/9 Design control — primary reference Fei Microwave Inc |
| A9L125-B1 | 5/9 Secondary reference Fei Microwave Inc |
NSN 5840-01-127-3263 is a Limiter,power, manufactured by Frequency Electronics Inc, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-01-127-3263 has 3 manufacturer part numbers on file: A9L125-B1 (Frequency Electronics Inc), A4/712220 (Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems), A9L125B (Frequency Electronics Inc).
Key specifications for A9L125B: General Characteristics Item Description: FEATURE: NARROW BAND WITH DC RETURN; FREQUENCY RANGE: 8.0 TO 16.0 GHZ; INSERTION LOSS: 1.8 DB; MAXIMUM LEAKAGE (1 WATT CW INPUT): 60.0 MW,17.8 DBM; LIMITING THRESHOLD: 8.0 MW,9.0 DBM;PEAK POWER: 70.0 W; OPERATING TEMPERATURE: M65.0 C/P150.0; SHOCK: 1500.0 G,0.5 MSEC,50.0 G,11.0 MSEC; VIBRATION: 20 G,100.0 TO 2000.0 HZ; ACCELERATION: 2000.0 G; LENGTH: 1.040 IN. MIN,1.080 IN. MAX; DIAMETER: 0.310 IN. NOM GHz; Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC; End Item Identification: AN/MPQ-T3. 2 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 5840-01-127-3263 has DEMIL Code B. 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.