The Strainer,sediment, cataloged under National Stock Number 4730-01-438-8463, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-438-8463 |
| Primary Part Number | 581-.50IPS |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Core Industries Inc. Dba Mueller Steam Specialty |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED SINGLE FILTERING MEDIA RESPONSE |
| Distance From Bottom of Body to Center of Inlet | 2.375 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 0.500 INCHES IN |
| First Intake Thread Series Designator | NPT |
| Temp Rating | 100.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED INTERNAL PIPE LINE |
| Perforation Quantity | 144.0 PER SQUARE INCH |
| Style Designator | Y STRAINER W/THREADED COVER |
| Operating Pressure | 1480.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Body Length | 3.000 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | WATER |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Perforation Diameter | 0.062 INCHES NOMINAL IN |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| 581-.50IPS PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| 581-1/2IN | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
NSN 4730-01-438-8463 is a Strainer,sediment, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-438-8463 has 2 manufacturer part numbers on file: 581-.50IPS (Core Industries Inc. Dba Mueller Steam Specialty), 581-1/2IN (Core Industries Inc. Dba Mueller Steam Specialty).
Key specifications for 581-.50IPS: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 2.375 INCHES NOMINAL IN; First Intake Nominal Thread Size: 0.500 INCHES IN; First Intake Thread Series Designator: NPT. 17 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.