The Filter Box Assembly, cataloged under National Stock Number 5845-01-138-6025, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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.
| Item Name | Filter Box Assembly |
| FSC / FSG | 5845 — Underwater Sound Equipment (FSG 58) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 21877) |
| Parameter | Value |
|---|---|
| NSN | 5845-01-138-6025 |
| Primary Part Number | 148974-2 |
| Item Name | Filter Box Assembly |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 148974-2 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5845-01-138-6025 is a Filter Box Assembly, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5845, Underwater Sound Equipment. Status: active.
NSN 5845-01-138-6025 has 1 manufacturer part number on file: 148974-2 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-668-8285. Verify interchangeability with system specifications before substitution.
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 5845-01-138-6025 has DEMIL Code C. 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.