The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-01-189-6582, 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 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-189-6582 |
| Primary Part Number | 75A720600-2001 |
| 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 | ROUND WITH HOLES FIRST ENDROUND WITH HOLES FIRST END |
| Flange Face Design | PLAIN FIRST ENDPLAIN FIRST END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND ENDEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Bolt Circle Nominal Diameter | 1.545 INCHES FIRST END1.545 INCHES FIRST END IN |
| Nominal Overall Length | 1.024 INCHES1.024 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND ENDTHREADED EXTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST ENDFLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.195 INCHES FIRST END0.195 INCHES FIRST END IN |
| Nominal Thread Size | 0.437 INCHES SECOND END0.437 INCHES SECOND END IN |
| Nominal Outside Diameter | 2.122 INCHES FIRST END2.122 INCHES FIRST END IN |
| Bolt Hole Quantity | 3 FIRST END3 FIRST END |
| Thread Class | 2A SECOND END2A SECOND END A |
| Thread Quantity Per Inch | 24 SECOND END24 SECOND END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNS SECOND ENDUNS SECOND END |
| Nominal Thickness | 0.095 INCHES FIRST END0.095 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 |
|---|---|
| 75A720600-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75A720600 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 75A720600-2001 | 5/9 Secondary reference Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing |
| 75A720600-2001 | 5/9 Secondary reference Carden Machine Shop, Inc. |
NSN 4730-01-189-6582 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 4730-01-189-6582 has 1 manufacturer part number on file: 75A720600-2001 (The Boeing Company Div Defense).
Key specifications for 75A720600-2001: Flange Shape: ROUND WITH HOLES FIRST ENDROUND WITH HOLES FIRST END; Flange Face Design: PLAIN FIRST ENDPLAIN FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND ENDEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Bolt Circle Nominal Diameter: 1.545 INCHES FIRST END1.545 INCHES FIRST END IN. 16 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.