The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-01-348-4317, 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 12 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-348-4317 |
| Primary Part Number | 74A586543-2003 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Nominal Length | 1.250 INCHES FIRST END IN |
| Nominal Overall Length | 1.250 INCHES IN |
| Connection Type | FLANGE FIRST END |
| Connection Type | THREADED INTERNAL BOSS AND THREADED EXTERNAL BOSS SECOND END |
| Nominal Thread Size | 0.435 INCHES AND 0.375 INCHES SECOND END IN |
| Nominal Width | 1.250 INCHES FIRST END IN |
| Thread Class | 3B AND 3A SECOND END A |
| Material | ALUMINUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Nominal Thickness | 0.200 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 |
|---|---|
| 74A586543-2003 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A586543-2003 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 10109059 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A586543 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-348-4317 is a Adapter,straight,flange to Boss, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-348-4317 has 2 manufacturer part numbers on file: 74A586543-2003 (The Boeing Company Div Defense), 74A586543-2003 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 74A586543-2003: Flange Shape: RECTANGULAR FIRST END; Flange Face Design: PLAIN FIRST END; Nominal Length: 1.250 INCHES FIRST END IN; Nominal Overall Length: 1.250 INCHES IN. 12 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.