The Test Set Group,countermeasures, cataloged under National Stock Number 4920-01-187-9248, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-187-9248 |
| Item Name | Test Set Group,countermeasures |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| FSC Application Data | AMPLIFIER,RADIO FREQUENCY,AM-6991A A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 001-006902-001 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| 4242669-009 | 3/9 Design control — primary reference Ail Systems Inc Sub of Eaton Corp |
NSN 4920-01-187-9248 is a Test Set Group,countermeasures, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-187-9248: FSC Application Data: AMPLIFIER,RADIO FREQUENCY,AM-6991A A; Special Features: C/0 INTERFACE PANEL ASSY,CABLE ASSEMBLY 14,CIRCUIT CARD ASSY 7,TEST PROGRAM DISC OR TAPE WITH INSTRUCTIONS; End Item Identification: AN/ALQ-161A;B-1B ACFT AGE. 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.
NSN 4920-01-187-9248 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.