The Filter Element,fluid, cataloged under National Stock Number 4330-01-331-3596, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-331-3596 |
| Primary Part Number | 1771AS262-1 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 3.750 INCHES NOMINAL IN |
| Body Overall Length | 1.000 INCHES NOMINAL IN |
| Flow Direction | PARALLEL |
| Design Type | LIMITED |
| Mesh Size | 100.0 |
| Style Designator | MULTIPLE STACKED DISKS, W/OUT CLEANING BLADES |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE FILTERING MEDIUM |
| Body Inside Diameter | 0.375 INCHES NOMINAL IN |
| Filtering System for Which Designed | FULL FLOW |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | STEEL COMP 304 FILTERING MEDIUM |
| Wire Diameter | 0.0045 INCHES NOMINAL IN |
| Filtering Surface Area | 0.050 SQUARE FEET |
| 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 |
|---|---|
| 1771AS262-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 37-D-1 | 3/2 Design control — primary reference U.S. Government activity |
| 1771AS262 | 7/1 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4330-01-331-3596 is a Filter Element,fluid, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-331-3596 has 1 manufacturer part number on file: 1771AS262-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1771AS262-1: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 3.750 INCHES NOMINAL IN; Body Overall Length: 1.000 INCHES NOMINAL IN; Flow Direction: PARALLEL. 14 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.