The Filter Element,fluid, cataloged under National Stock Number 4330-01-115-0630, 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 Westerbeke Corporation. Government technical data includes 4 specifications, 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 | 4330-01-115-0630 |
| Primary Part Number | 21956 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Westerbeke Corporation |
| Status | ACTIVE |
| Body Diameter | 0.500 INCHES NOMINAL IN |
| Body Overall Length | 1.000 INCHES NOMINAL IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | PLASTIC BODY |
| 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 |
|---|---|
| 21956 PRIMARY | Westerbeke Corporation (USA) |
NSN 4330-01-115-0630 is a Filter Element,fluid, manufactured by Westerbeke Corporation, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-115-0630 has 1 manufacturer part number on file: 21956 (Westerbeke Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-167-5576. Verify interchangeability with system specifications before substitution.
Key specifications for 21956: Body Diameter: 0.500 INCHES NOMINAL IN; Body Overall Length: 1.000 INCHES NOMINAL IN; Media for Which Designed: FUEL/OIL, HYDROCARBON; Material: PLASTIC BODY. 4 specifications are 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.