The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-261-5832, 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 Metraflex Company the. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-261-5832 |
| Primary Part Number | METASPHERE 3IN |
| Item Name | Expansion Joint,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Metraflex Company the |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 3.000 INCHES IN |
| End Connection Type | FLANGED |
| Bolt Hole Diameter | 0.625 INCHES NOMINAL IN |
| Working Pressure Rating | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 6.000 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM FLANGE |
| Material | STEEL CORROSION RESISTING FLANGE |
| Flange Outside Diameter | 7.500 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 |
|---|---|
| METASPHERE 3IN PRIMARY | Metraflex Company the (USA) |
| Reference | Meaning |
|---|---|
| 3255621 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4730-01-261-5832 is a Expansion Joint,pipe, manufactured by Metraflex Company the, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-261-5832 has 1 manufacturer part number on file: METASPHERE 3IN (Metraflex Company the).
Key specifications for METASPHERE 3IN: Nominal Pipe Size Designation: 3.000 INCHES IN; End Connection Type: FLANGED; Bolt Hole Diameter: 0.625 INCHES NOMINAL IN; Overall Length: 5.125 INCHES NOMINAL IN. 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.