The Flange,pipe,blind, cataloged under National Stock Number 4730-00-230-8772, 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 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-230-8772 |
| Item Name | Flange,pipe,blind |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Diameter | 7.500 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 2.500 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 850.0 FAHRENHEIT STEAM DEGF |
| Operating Pressure and Type | 600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LBS |
| Flange Section Style | RAISED FACE (BLIND) |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.812 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 5.875 INCHES NOMINAL IN |
| Raised Face Height | 0.250 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | GASKET |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY 2-1/2 IN. NOM PIPE SIZE IN |
| Thickness | 1.125 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 |
|---|---|
| 810-1385717 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-00-230-8772 is a Flange,pipe,blind, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-230-8772: Flange Diameter: 7.500 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 2.500 INCHES IN; Maximum Operating Temp and Media for Which Designed: 850.0 FAHRENHEIT STEAM DEGF. 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.