The Filter Element,fluid, cataloged under National Stock Number 4330-01-475-4031, 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 Rix Industries. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-475-4031 |
| Primary Part Number | 77-1023 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Filtering Media Design | POROUS SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 2.500 INCHES NOMINAL IN |
| Body Overall Length | 30.000 INCHES MAXIMUM IN |
| Filtration Rating in Microns | 0.30 NOMINAL |
| Flow Direction | INSIDE OUT OR OUTSIDE IN |
| Design Type | REUSABLE |
| Temp Rating | 250.0 FAHRENHEIT MAXIMUM DEGF |
| Style Designator | CYLINDRICAL W/ CONTAINER (RIGID) |
| Media for Which Designed | AIR OR GAS |
| Material | GLASS FIBER FILTERING MEDIUM |
| 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 |
|---|---|
| B7173 PC 6 P/N 77-1023 | Rix Industries (USA) |
| 77-1023 PRIMARY | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| B7173 | D/9 Drawing number reference only Rix Industries |
NSN 4330-01-475-4031 is a Filter Element,fluid, manufactured by Rix Industries, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-475-4031 has 2 manufacturer part numbers on file: B7173 PC 6 P/N 77-1023 (Rix Industries), 77-1023 (Rix Industries).
Key specifications for 77-1023: Filtering Media Design: POROUS SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 2.500 INCHES NOMINAL IN; Body Overall Length: 30.000 INCHES MAXIMUM IN; Filtration Rating in Microns: 0.30 NOMINAL. 10 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.