The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-267-1371, 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 Bae Systems (operations) Limited. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-267-1371 |
| Primary Part Number | 75A837646-1003 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Bae Systems (operations) Limited |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flow Angle | 30.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED (HOSE) SECOND END |
| Bolt Circle Nominal Diameter | 1.000 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 5.00 MILLIMETERS SECOND END MM |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 3.25 MILLIMETERS FIRST END MM |
| Leg Length | 1.120 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.0359 INCHES NOMINAL FIRST END IN |
| Nominal Outside Diameter | 1.500 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Thickness | 0.359 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 |
|---|---|
| 75A837646-1003 | Bae Systems (operations) Limited (GBR) |
| Reference | Meaning |
|---|---|
| 75A837646-1003 | 3/9 Design control — primary reference The Boeing Company Div Defense |
| 75A837646-1003 | 5/9 Secondary reference Bae Systems Plc |
| 75A837646-1003 | 5/9 Secondary reference British Aerospace Inc Military Support Div |
| 75A837646-1003 | 5/9 Secondary reference British Aerospace (military Aircraft & Aerostructures) |
| 75A837646 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-267-1371 is a Elbow,flange to Hose, manufactured by Bae Systems (operations) Limited, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-267-1371 has 1 manufacturer part number on file: 75A837646-1003 (Bae Systems (operations) Limited).
Key specifications for 75A837646-1003: Flange Shape: ROUND WITH HOLES FIRST END; Flow Angle: 30.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: BEADED (HOSE) SECOND END. 15 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.