The Elbow,tube, cataloged under National Stock Number 4730-01-322-2638, 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 17 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-322-2638 |
| Primary Part Number | ST7M263V8 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Criticality Code Justification | FEAT |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Leg Length | 0.880 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.094 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END BULKHEAD IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Surface Treatment | CHROMATE BODY |
| Thread Class | 2A SECOND END BULKHEAD A |
| Thread Class | 2A SECOND END A |
| Thread Class | 2B FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF SECOND END |
| Thread Series Designator | UNF SECOND END BULKHEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| ST7M263V8 | Nelson Aero Space, Inc. (USA) |
| ST7M263V8 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| ST7M263V8 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| ST7M263V8 | Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco (USA) |
| ST7M263V8 PRIMARY | The Boeing Company Div Defense (USA) |
| ST7M263V8 | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| Reference | Meaning |
|---|---|
| ST7M263V8 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| ST7M263 | D/9 Drawing number reference only The Boeing Company Div Defense |
| ST7M263V8 | 5/9 Secondary reference Cal Fittings Inc |
NSN 4730-01-322-2638 is a Elbow,tube, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-322-2638 has 6 manufacturer part numbers on file: ST7M263V8 (Nelson Aero Space, Inc.), ST7M263V8 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), ST7M263V8 (Sps Technologies, Llc Dba Airdrome Precision Components), ST7M263V8 (Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco), ST7M263V8 (The Boeing Company Div Defense) and 1 more.
Key specifications for ST7M263V8: Flow Angle: 90.0 DEGREES; Criticality Code Justification: FEAT; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES SECOND END IN; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN. 17 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.