The Filter Element,fluid, cataloged under National Stock Number 4330-01-502-7259, 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 Barbee Valve & Supply Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-502-7259 |
| Primary Part Number | B73G-3AK-QD3-RMG |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Barbee Valve & Supply Inc |
| Status | ACTIVE |
| Filtering Media Design | SINTERED SINGLE FILTERING MEDIA RESPONSE |
| Filtration Rating in Microns | 40.0 NOMINAL |
| Flow Direction | INSIDE OUT |
| Distance From Bottom of Body to Center of Inlet | 6.150 INCHES NOMINAL IN |
| Drop Pressure | ERR-060 |
| Design Type | NONREUSABLE |
| Body Height | 10.190 INCHES NOMINAL IN |
| Style Designator | STRAIGHT FLOW BASKET STRAINER W/ BOLTED COVER |
| Body Length | 2.680 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| Material | ALUMINUM 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 |
|---|---|
| B73G-3AK-QD3-RMG PRIMARY | Barbee Valve & Supply Inc (USA) |
| Reference | Meaning |
|---|---|
| B08-300-M3MA | 5/9 Secondary reference Barbee Valve & Supply Inc |
NSN 4330-01-502-7259 is a Filter Element,fluid, manufactured by Barbee Valve & Supply Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-502-7259 has 1 manufacturer part number on file: B73G-3AK-QD3-RMG (Barbee Valve & Supply Inc).
Key specifications for B73G-3AK-QD3-RMG: Filtering Media Design: SINTERED SINGLE FILTERING MEDIA RESPONSE; Filtration Rating in Microns: 40.0 NOMINAL; Flow Direction: INSIDE OUT; Distance From Bottom of Body to Center of Inlet: 6.150 INCHES NOMINAL IN. 11 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.