The Flange,pipe, cataloged under National Stock Number 4730-01-347-6577, 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 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-347-6577 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange End Radius | 0.188 INCHES NOMINAL IN |
| Face Seating Surface Condition | UNFINISHED |
| Tube Outside Diameter for Which Designed | 0.750 INCHES NOMINAL IN |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Style Designator | OVAL, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.212 INCHES NOMINAL IN |
| Neck Height | 0.304 INCHES NOMINAL IN |
| Material Document and Classification | AMS6378 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6381 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6382 ASSN STD SINGLE MATERIAL RESPONSE |
| Flange Length | 2.204 INCHES NOMINAL IN |
| Bolt Hole Quantity | 2 |
| Bolt Circle Diameter | 1.828 INCHES NOMINAL IN |
| Flange Width | 1.469 INCHES NOMINAL IN |
| Material | STEEL |
| Neck Diameter | 0.968 INCHES NOMINAL IN |
| Thickness | 0.125 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 |
|---|---|
| 741691 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-347-6577 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-347-6577: Flange End Radius: 0.188 INCHES NOMINAL IN; Face Seating Surface Condition: UNFINISHED; Tube Outside Diameter for Which Designed: 0.750 INCHES NOMINAL IN; Flange Section Style: PLAIN FACE, LONG NECK. 15 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.