The Filter Holder Assy, cataloged under National Stock Number 4330-01-389-0271, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Ball Aerospace & Technologies Corp. Div Tactical Solutions. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-389-0271 |
| Primary Part Number | 303004-500 |
| Item Name | Filter Holder Assy |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Ball Aerospace & Technologies Corp. Div Tactical Solutions |
| Status | ACTIVE |
| General Characteristics Item Description | 4 COUNTERSUNK MOUNTING HOLES |
| 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 |
|---|---|
| 303004-500 PRIMARY | Ball Aerospace & Technologies Corp. Div Tactical Solutions (USA) |
| Reference | Meaning |
|---|---|
| 303004 | 5/1 Secondary reference Ball Aerospace & Technologies Corp. Div Tactical Solutions |
NSN 4330-01-389-0271 is a Filter Holder Assy, manufactured by Ball Aerospace & Technologies Corp. Div Tactical Solutions, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-389-0271 has 1 manufacturer part number on file: 303004-500 (Ball Aerospace & Technologies Corp. Div Tactical Solutions).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-666-3537, 5325-01-721-5758. Verify interchangeability with system specifications before substitution.
Key specifications for 303004-500: General Characteristics Item Description: 4 COUNTERSUNK MOUNTING HOLES; Part Name Assigned by Controlling Agency: FILTER HOLDER ASSEMBLY; End Item Identification: 1260-01-208-6448 MAST MOUNTED SIGHT. 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.