The Flange,pipe, cataloged under National Stock Number 4730-00-274-5445, 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12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-274-5445 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Diameter | 1.375 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Flange Section Style | RAISED FACE, RAISED NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES IN |
| Reducer Flange Hole Type | CONCENTRIC |
| Bolt Hole Quantity | 4 |
| Raised Face Height | 0.093 INCHES NOMINAL IN |
| Screw Thread Series Designator | NPT |
| Material | COPPER ALLOY |
| Thickness | 0.250 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 |
|---|---|
| 8849337-1 | 3/9 Design control — primary reference Rca Corp Distributor and Special Products Div |
| 8849337-1 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 4730-00-274-5445 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-274-5445: Flange Diameter: 1.375 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Flange Section Style: RAISED FACE, RAISED NECK; Style Designator: ROUND, ONE BOLT HOLE CIRCLE. 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.