The Strainer,sediment, cataloged under National Stock Number 4730-01-356-6869, 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 20 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 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 | 4730-01-356-6869 |
| Primary Part Number | 2.5-851 |
| 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 | 7.375 INCHES NOMINAL IN |
| First Intake Flange Raised Face Diameter | 4.125 INCHES NOMINAL IN |
| First Intake Flange Thickness | 0.875 INCHES NOMINAL IN |
| Temp Rating | 405.0 FAHRENHEIT NOMINAL DEGF |
| First Intake Flange Outside Diameter | 7.000 INCHES NOMINAL IN |
| First Intake Connection Type | RAISED FACE FLANGE LINE |
| Perforation Quantity | 144.0 PER SQUARE INCH |
| Style Designator | Y STRAINER W/BOLTED COVER |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| First Intake Flange Shape Style | ROUND W/UNTHREADED BOLT HOLES |
| Body Length | 10.062 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | WATER |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Perforation Diameter | 0.062 INCHES NOMINAL IN |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| First Intake Flange Face Style | RAISED |
| First Intake Flange Raised Face Height | 0.062 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 |
|---|---|
| 2.5-851 PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
NSN 4730-01-356-6869 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 4730-01-356-6869 has 1 manufacturer part number on file: 2.5-851 (Core Industries Inc. Dba Mueller Steam Specialty).
1 possible match (shared part number, not a government interchangeability claim): 6015-01-441-4251. Verify interchangeability with system specifications before substitution.
Key specifications for 2.5-851: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 7.375 INCHES NOMINAL IN; First Intake Flange Raised Face Diameter: 4.125 INCHES NOMINAL IN; First Intake Flange Thickness: 0.875 INCHES NOMINAL IN. 20 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.