The Flange,pipe,blind, cataloged under National Stock Number 4730-00-835-3729, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-835-3729 |
| Item Name | Flange,pipe,blind |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Diameter | 7.188 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 3.500 INCHES IN |
| Operating Pressure and Type | 350.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS |
| Flange Section Style | PLAIN FACE (BLIND) |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.562 INCHES NOMINAL IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 6.062 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | GASKET |
| Thickness | 0.562 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 |
| Reference | Meaning |
|---|---|
| 578S4801H1574158PC36-37 | 5/9 Secondary reference U.S. Government activity |
| 578S4801H1574158PC36-37 | 5/1 Secondary reference Naval Sea Systems Command |
| 7800-009PC36-37 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-00-835-3729 is a Flange,pipe,blind, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-835-3729: Flange Diameter: 7.188 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 3.500 INCHES IN; Operating Pressure and Type: 350.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS. 12 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.