The Elbow,flange, cataloged under National Stock Number 4730-00-424-0384, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 24 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-424-0384 |
| Primary Part Number | 8B3122 |
| Item Name | Elbow,flange |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES SECOND END |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flow Angle | 120.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Flange Face Design | PLAIN SECOND END |
| Nominal Length | 3.750 INCHES FIRST END IN |
| Nominal Length | 6.375 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 5.250 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.391 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.516 INCHES SECOND END IN |
| Leg Length | 3.750 INCHES NOMINAL FIRST END IN |
| Leg Length | 12.000 INCHES NOMINAL SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.609 INCHES FIRST END IN |
| Bolt Hole Quantity | 2 SECOND END |
| Bolt Hole Quantity | 4 FIRST END |
| Surface Treatment | PAINT OVERALL |
| Nominal Width | 3.750 INCHES FIRST END IN |
| Nominal Width | 3.469 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.609 INCHES FIRST END IN |
| Material | STEEL OVERALL |
| Nominal Thickness | 0.391 INCHES FIRST END IN |
| Nominal Thickness | 0.562 INCHES SECOND END 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 |
|---|---|
| 8B3122 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 4730-00-424-0384 is a Elbow,flange, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-424-0384 has 1 manufacturer part number on file: 8B3122 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 8B3122: Flange Shape: OVAL WITH HOLES SECOND END; Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flow Angle: 120.0 DEGREES; Flange Face Design: PLAIN FIRST END. 24 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.