The Monitor,phase, cataloged under National Stock Number 4920-01-277-7727, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. Government technical data includes 1 specification, 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. 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 | 4920-01-277-7727 |
| Primary Part Number | 450131-1 |
| Item Name | Monitor,phase |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Functional Description | USED IN THE DEFENSIVE ATE AUGMENTATION EQUIPMENT (DAAE),WHITCH TEST SRU'S ON THE B-1 ACFT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 450131-1 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
NSN 4920-01-277-7727 is a Monitor,phase, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-277-7727 has 1 manufacturer part number on file: 450131-1 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-607-6271. Verify interchangeability with system specifications before substitution.
Key specifications for 450131-1: Special Features: COMPANY ITEM NAME-MONITOR, AIR FLOW; Functional Description: USED IN THE DEFENSIVE ATE AUGMENTATION EQUIPMENT (DAAE),WHITCH TEST SRU'S ON THE B-1 ACFT; End Item Identification: AN/ALQ-161A A. 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.
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.