The Filter,fluid, cataloged under National Stock Number 4330-01-463-1122, 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 Sea Systems Command. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-463-1122 |
| Primary Part Number | 803-6915568-20.59.1 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Filtering Media Design | POROUS SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 2 |
| Distance Between Mounting Hole Centers | 1.500 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 0.750 INCHES IN |
| First Intake Thread Series Designator | NPT |
| Design Type | REUSABLE |
| Body Outside Diameter | 4.750 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 7.250 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL PIPE HEAD SIDE |
| Style Designator | UNTHREADED SHELL |
| Mounting Hole Diameter | 1.6875 INCHES NOMINAL IN |
| Operating Pressure | 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | DRAIN PLUG |
| 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 | ANY ACCEPTABLE |
| Bracket Quantity | 1 |
| Material | PLASTIC POLYPROPYLENE FILTERING MEDIUM |
| Material | STEEL CORROSION RESISTING BODY |
| Mounting Type | BRACKET W/DRILLED HOLE HEAD |
| 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 |
|---|---|
| 803-6915568-20.59.1 PRIMARY | Naval Sea Systems Command (USA) |
| LMO4S-3/4 | Pall Corporation Div Pall Trincor (USA) |
| Reference | Meaning |
|---|---|
| 803-6915568 | D/9 Drawing number reference only Naval Sea Systems Command |
| LMO4S-3/4 | 5/9 Secondary reference Memtec America Corp Filterite Sales Div |
NSN 4330-01-463-1122 is a Filter,fluid, manufactured by Naval Sea Systems Command, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-463-1122 has 2 manufacturer part numbers on file: 803-6915568-20.59.1 (Naval Sea Systems Command), LMO4S-3/4 (Pall Corporation Div Pall Trincor).
1 possible match (shared part number, not a government interchangeability claim): 4310-01-463-1152. Verify interchangeability with system specifications before substitution.
Key specifications for 803-6915568-20.59.1: Filtering Media Design: POROUS SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 2; Distance Between Mounting Hole Centers: 1.500 INCHES NOMINAL IN; First Intake Nominal Thread Size: 0.750 INCHES IN. 22 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.