The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-186-3540, 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 Legacy Am&m. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-186-3540 |
| Primary Part Number | L5804803-001 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Recess Nominal Depth | 0.062 INCHES SECOND END IN |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Flange Face Design | RECESSED CURVED SECOND END |
| Connection Style | CUSHION SEAL (TUBE) FIRST END |
| Nominal Length | 1.500 INCHES SECOND END IN |
| Nominal Overall Length | 1.090 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.220 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Thread Size | 0.563 INCHES FIRST END IN |
| Specification/standard Data | 43999-L5804803 MANUFACTURERS SPECIFICATION |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.062 INCHES SECOND END IN |
| Nondefinitive Spec/std Data | 001 ASSEMBLY |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 1.500 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.062 INCHES SECOND END IN |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 20 FIRST END |
| Material | COPPER ALLOY OVERALLUNABLE TO DECODE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNJS FIRST END |
| Nominal Thickness | 0.412 INCHES SECOND END IN |
| Recess Nominal Diameter | 0.451 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L5804803-001 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| L5804803 | D/9 Drawing number reference only The Boeing Company Div Legacy Am&m |
NSN 4730-01-186-3540 is a Adapter,straight,flange to Tube, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-186-3540 has 1 manufacturer part number on file: L5804803-001 (The Boeing Company Div Legacy Am&m).
Key specifications for L5804803-001: Recess Nominal Depth: 0.062 INCHES SECOND END IN; Flange Shape: RECTANGULAR WITH HOLES SECOND END; Flange Face Design: RECESSED CURVED SECOND END; Connection Style: CUSHION SEAL (TUBE) FIRST END. 24 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.
NSN 4730-01-186-3540 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.