The Filter,fluid, cataloged under National Stock Number 4330-01-423-1925, 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 Wm W Nugent & Co Inc. Government technical data includes 19 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-423-1925 |
| Primary Part Number | 90-176-201 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Wm W Nugent & Co Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Distance From Bottom of Body to Center of Inlet | 27.000 INCHES NOMINAL IN |
| Drop Pressure | ERR-060 |
| Design Type | REUSABLE |
| Body Outside Diameter | 30.000 INCHES NOMINAL IN |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Body Height | 76.250 INCHES NOMINAL IN |
| First Intake Connection Type | RAISED FACE FLANGE SIDE |
| Style Designator | LEG MOUNTED BODY AND COVER ASSY (SWING BOLTED) |
| Mounting Hole Diameter | 1.000 INCHES NOMINAL IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | DRAIN PLUG |
| First Intake Flange Shape Style | ROUND W/UNTHREADED BOLT HOLES |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | STEEL BODY |
| Mounting Type | UNTHREADED HOLE BASE |
| 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 |
|---|---|
| 90-176-201 PRIMARY | Wm W Nugent & Co Inc (USA) |
| 1577-224B-SN-M-PORT | Wm W Nugent & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 90-176 | D/9 Drawing number reference only Wm W Nugent & Co Inc |
NSN 4330-01-423-1925 is a Filter,fluid, manufactured by Wm W Nugent & Co Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-423-1925 has 2 manufacturer part numbers on file: 90-176-201 (Wm W Nugent & Co Inc), 1577-224B-SN-M-PORT (Wm W Nugent & Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 7010-01-620-8208. Verify interchangeability with system specifications before substitution.
Key specifications for 90-176-201: Mounting Hole Quantity: 4; Distance From Bottom of Body to Center of Inlet: 27.000 INCHES NOMINAL IN; Drop Pressure: ERR-060; Design Type: REUSABLE. 19 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.