The Filter,fluid, cataloged under National Stock Number 4330-01-256-8617, 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 Inventory Control Point Mechanicsburg. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-256-8617 |
| Primary Part Number | D844-4001-C1CP |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Style Designator | Y STRAINER W/THREADED COVER |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Filtering Element Quantity | 1 |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | OXYGEN, LIQUID |
| Material | COPPER ALLOY 922 BODY |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION TOP |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| D844-4001-C1CP | Naval Inventory Control Point Mechanicsburg (USA) |
| D841-4039CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| D844-4001-C1 | 5/9 Secondary reference U.S. Government activity |
| D844-4001-C1 | 5/1 Secondary reference Cold Llc |
| D841-4039 | 5/9 Secondary reference U.S. Government activity |
| D841-4039 | 3/1 Design control — primary reference Cold Llc |
NSN 4330-01-256-8617 is a Filter,fluid, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-256-8617 has 2 manufacturer part numbers on file: D844-4001-C1CP (Naval Inventory Control Point Mechanicsburg), D841-4039CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for D844-4001-C1CP: Criticality Code Justification: ZZZY; Style Designator: Y STRAINER W/THREADED COVER; Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY; Filtering Element Quantity: 1. 9 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.