The Elbow,flange to Boss, cataloged under National Stock Number 4730-01-181-1190, 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 Maney Aircraft, Inc. Dba Maney Aircraft. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-181-1190 |
| Primary Part Number | L5840573-003 |
| Item Name | Elbow,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Maney Aircraft, Inc. Dba Maney Aircraft |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 1.092 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.199 INCHES FIRST END IN |
| Leg Length | 0.310 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.092 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 1.092 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 0.688 INCHES FIRST END IN |
| Thread Class | 3A SECOND END A |
| Thread Quantity Per Inch | 20 SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | UNJS SECOND END |
| Nominal Thickness | 0.560 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 |
|---|---|
| L5840573-003 | The Boeing Company Div Legacy Am&m (USA) |
| L5840573-003 PRIMARY | Maney Aircraft, Inc. Dba Maney Aircraft (USA) |
| L5840573-003 PRIMARY | Ricmar Engineering Inc (USA) |
| L5840573-003 PRIMARY | Woodward Hrt, Inc. Dba Woodward Hrt Inc (USA) |
| L5840573-003 PRIMARY | Carden Machine Shop, Inc. (USA) |
| L5840573-003 PRIMARY | Smith and Smith Aircraft Co (USA) |
| Reference | Meaning |
|---|---|
| L5840573 | D/9 Drawing number reference only The Boeing Company Div Legacy Am&m |
| L5840573-003 | 5/9 Secondary reference Tower Industries Inc Div Allied Mechanical |
NSN 4730-01-181-1190 is a Elbow,flange to Boss, manufactured by Maney Aircraft, Inc. Dba Maney Aircraft, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-181-1190 has 6 manufacturer part numbers on file: L5840573-003 (The Boeing Company Div Legacy Am&m), L5840573-003 (Maney Aircraft, Inc. Dba Maney Aircraft), L5840573-003 (Ricmar Engineering Inc), L5840573-003 (Woodward Hrt, Inc. Dba Woodward Hrt Inc), L5840573-003 (Carden Machine Shop, Inc.) and 1 more.
Key specifications for L5840573-003: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Nominal Length: 1.092 INCHES FIRST END IN; Connection Type: THREADED EXTERNAL BOSS SECOND END. 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.