The Elbow,tube, cataloged under National Stock Number 4730-01-248-3845, 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 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-248-3845 |
| Primary Part Number | ST7M263V12 |
| 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 |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Leg Length | 2.656 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Nominal Thread Size | 1.062 INCHES SECOND END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Thread Class | 3A SECOND END BULKHEAD A |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 12 SECOND END BULKHEAD |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | ALUMINUM ALLOY 2014 OVERALL |
| Thread Series Designator | UN ALL ENDS |
| Thread Series Designator | UN 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 |
|---|---|
| ST7M263V12 | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| ST7M263V12 | Nelson Aero Space, Inc. (USA) |
| ST7M263V12 | Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco (USA) |
| ST7M263V12 PRIMARY | The Boeing Company Div Defense (USA) |
| ST7M263V12 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| ST7M263V12 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| Reference | Meaning |
|---|---|
| ST7M263V12 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| ST7M263 | D/9 Drawing number reference only The Boeing Company Div Defense |
| ST7M263V12 | 5/9 Secondary reference Cal Fittings Inc |
NSN 4730-01-248-3845 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 4730-01-248-3845 has 6 manufacturer part numbers on file: ST7M263V12 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply), ST7M263V12 (Nelson Aero Space, Inc.), ST7M263V12 (Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco), ST7M263V12 (The Boeing Company Div Defense), ST7M263V12 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-322-2638. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M263V12: Flow Angle: 90.0 DEGREES; Connection Style: FLARED (TUBE) SECOND END; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Criticality Code Justification: FEAT. 19 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.