The Strainer,sediment, cataloged under National Stock Number 4730-01-144-5218, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-144-5218 |
| Primary Part Number | 351M-1-1-4 |
| 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 | MESH ALL FILTERING MEDIA RESPONSES |
| Distance From Bottom of Body to Center of Inlet | 5.125 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 1.250 INCHES IN |
| First Intake Thread Series Designator | NPT |
| First Intake Thread Direction | RIGHT-HAND |
| Mesh Size | 20.0 |
| First Intake Connection Type | THREADED EXTERNAL PIPE UPPER SIDE |
| Style Designator | Y STRAINER W/BLOW-OFF PLUG |
| Material Document and Classification | ASTMB-16 ASSN STD ALL MATERIAL RESPONSES BODY |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Body Length | 3.750 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | FUEL/OIL, HYDROCARBON AND GAS AND WATER |
| Material | COPPER ALLOY BODY |
| Mounting Type | INLET CONNECTION LINE |
| Wire Diameter | 0.031 INCHES NOMINAL IN |
| 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 |
|---|---|
| 351M-1-1-4 PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| Reference | Meaning |
|---|---|
| 351-1-1-4 | 5/9 Secondary reference Core Industries Inc. Dba Mueller Steam Specialty |
NSN 4730-01-144-5218 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 4730-01-144-5218 has 1 manufacturer part number on file: 351M-1-1-4 (Core Industries Inc. Dba Mueller Steam Specialty).
1 possible match (shared part number, not a government interchangeability claim): 6530-01-153-5415. Verify interchangeability with system specifications before substitution.
Key specifications for 351M-1-1-4: Filtering Media Design: MESH ALL FILTERING MEDIA RESPONSES; Distance From Bottom of Body to Center of Inlet: 5.125 INCHES NOMINAL IN; First Intake Nominal Thread Size: 1.250 INCHES IN; First Intake Thread Series Designator: NPT. 16 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.