FSC: 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters
FSG: 43 — Pumps and Compressors
General Description
The Purifier,centrifugal,oil, cataloged under National Stock Number 4330-01-221-5774, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4330-01-221-5774
Item Name
Purifier,centrifugal,oil
FSC / FSG
4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters
Status
ACTIVE
Capacity Rating
225.0 GALLONS PER HOUR NOMINAL
Bowl Material
STEEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
8455-01-547-9447POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
Possible match (shared part number)
8455-01-547-9451POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
Possible match (shared part number)
8455-01-559-4808POSSIBLE MATCH
INSIGNIA,ORGANIZATIONAL
Possible match (shared part number)
8455-01-559-4814POSSIBLE MATCH
INSIGNIA,ORGANIZATIONAL
Possible match (shared part number)
8455-01-664-1264POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
Possible match (shared part number)
8455-01-715-0274POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
ARS38-S4503-393703
3/2Design control — primary reference
U.S. Government activity
A-1326
5/9Secondary reference
Alfa Laval Inc
Related Parts
8455-01-547-9447POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
8455-01-547-9451POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
8455-01-559-4808POSSIBLE MATCH
INSIGNIA,ORGANIZATIONAL
8455-01-559-4814POSSIBLE MATCH
INSIGNIA,ORGANIZATIONAL
8455-01-664-1264POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
8455-01-715-0274POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
Frequently Asked Questions
What is NSN 4330-01-221-5774?
NSN 4330-01-221-5774 is a Purifier,centrifugal,oil, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
What NSN replaces 4330-01-221-5774?
6 possible matches (shared part number, not a government interchangeability claim): 8455-01-547-9447, 8455-01-547-9451, 8455-01-559-4808. Verify interchangeability with system specifications before substitution.
What are the specifications of 4330-01-221-5774?
Key specifications for 4330-01-221-5774: Capacity Rating: 225.0 GALLONS PER HOUR NOMINAL; Bowl Material: STEEL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4330-01-221-5774 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.