The Filter Element,air Conditioning, cataloged under National Stock Number 4130-01-370-0548, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4130-01-370-0548 |
| Primary Part Number | 660609 |
| Item Name | Filter Element,air Conditioning |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Style Designator | RECTANGULAR (INCL SQUARE) |
| 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 |
|---|---|
| 660609 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 437-6404265-70 | Naval Sea Systems Command (USA) |
NSN 4130-01-370-0548 is a Filter Element,air Conditioning, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-01-370-0548 has 2 manufacturer part numbers on file: 660609 (Northrop Grumman Systems Corporation), 437-6404265-70 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 6150-01-371-1563, 6150-01-395-3030. Verify interchangeability with system specifications before substitution.
Key specifications for 660609: Style Designator: RECTANGULAR (INCL SQUARE). 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.