The Elbow,flange to Boss, cataloged under National Stock Number 4730-01-443-6099, 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 The Boeing Company Div Defense. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-443-6099 |
| Primary Part Number | 68A552422-2003 |
| Item Name | Elbow,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Recess Nominal Depth | 0.120 INCHES FIRST END IN |
| Recess Nominal Depth | 0.120 INCHES FIRST ENDUNABLE TO DECODE IN |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flow Angle | 60.0 DEGREES |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 3.720 INCHES FIRST END IN |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.280 INCHES FIRST END IN |
| Leg Length | 2.060 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.299 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.312 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 4.000 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Surface Treatment | ANODIZE OVERALL |
| Surface Treatment | ANODIZE OVERALLUNABLE TO DECODE |
| Nominal Width | 3.720 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 4.000 INCHES FIRST END IN |
| Thread Class | 3B SECOND END |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Material | ALUMINUM ALLOY 7075 OVERALLUNABLE TO DECODE |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) SECOND END |
| Nominal Thickness | 0.160 INCHES FIRST END IN |
| Recess Nominal Diameter | 2.507 INCHES FIRST 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 |
|---|---|
| 68A552422-2003 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 68A552422 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 68A552422-2001 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 4730-01-443-6099 is a Elbow,flange to Boss, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-443-6099 has 1 manufacturer part number on file: 68A552422-2003 (The Boeing Company Div Defense).
Key specifications for 68A552422-2003: Recess Nominal Depth: 0.120 INCHES FIRST END IN; Recess Nominal Depth: 0.120 INCHES FIRST ENDUNABLE TO DECODE IN; Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flow Angle: 60.0 DEGREES. 26 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.