The Elbow,flange, cataloged under National Stock Number 4730-00-451-7954, 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 27 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 | 4730-00-451-7954 |
| Primary Part Number | 3R4480 |
| Item Name | Elbow,flange |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Recess Nominal Depth | 0.380 INCHES SECOND END IN |
| Flange Shape | OVAL WITH HOLES SECOND END |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN WITH GASKET GROOVE SECOND END |
| Nominal Length | 4.002 INCHES SECOND END IN |
| Nominal Length | 4.232 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 3.172 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 3.172 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.531 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 0.422 INCHES FIRST END IN |
| Leg Length | 2.500 INCHES NOMINAL ALL ENDS IN |
| Leg Length | 2.620 INCHES NOMINAL FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.688 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.688 INCHES SECOND END IN |
| Bolt Hole Quantity | 2 SECOND END |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 2.500 INCHES SECOND END IN |
| Nominal Width | 2.760 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.062 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.062 INCHES FIRST END IN |
| Material | IRON OVERALL |
| Nominal Thickness | 0.620 INCHES SECOND END IN |
| Nominal Thickness | 0.880 INCHES FIRST END IN |
| Recess Nominal Diameter | 1.500 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 |
|---|---|
| 3R4480 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 4730-00-451-7954 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 4730-00-451-7954 has 1 manufacturer part number on file: 3R4480 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3R4480: Recess Nominal Depth: 0.380 INCHES SECOND END IN; Flange Shape: OVAL WITH HOLES SECOND END; Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flow Angle: 90.0 DEGREES. 27 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.