The Flange,pipe, cataloged under National Stock Number 4730-01-434-3904, 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 Main Manufacturing Products Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-434-3904 |
| Primary Part Number | 1319-48-48 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Main Manufacturing Products Inc |
| Status | ACTIVE |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 3.000 INCHES IN |
| Flange Section Style | RAISED FACED, DISHED |
| Style Designator | BOLT HOLE CONNECTOR PLATE |
| Recess Depth | 0.355 INCHES NOMINAL IN |
| Flange Length | 5.310 INCHES NOMINAL IN |
| Reducer Flange Hole Type | CONCENTRIC |
| Recess Diameter | 4.031 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Center to Center Distance Between Bolt Holes Along Length | 4.188 INCHES NOMINAL IN |
| Flange Width | 5.160 INCHES NOMINAL IN |
| Thickness | 1.265 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 |
|---|---|
| 1319-48-48 PRIMARY | Main Manufacturing Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 1408069 | 5/9 Secondary reference Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel |
| MF-24-20 | 5/9 Secondary reference Main Manufacturing Products Inc |
NSN 4730-01-434-3904 is a Flange,pipe, manufactured by Main Manufacturing Products Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-434-3904 has 1 manufacturer part number on file: 1319-48-48 (Main Manufacturing Products Inc).
Key specifications for 1319-48-48: Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 3.000 INCHES IN; Flange Section Style: RAISED FACED, DISHED; Style Designator: BOLT HOLE CONNECTOR PLATE. 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.