The Elbow,swivel Flange to Tube, cataloged under National Stock Number 4730-01-539-3573, 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 Sae International Dba Sae International. Government technical data includes 14 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-539-3573 |
| Primary Part Number | SAE J1453-3 6-6 520281SA |
| Item Name | Elbow,swivel Flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END |
| Connection Style | SWIVEL NUT, GASKET SEAL (PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Leg Length | 1.150 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.450 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.687 INCHES SECOND END IN |
| Nominal Thread Size | 0.563 INCHES FIRST END IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 16 SECOND END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UN SECOND END |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| SAE J1453-3 6-6 520281SA PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| J1453-1 | 5/9 Secondary reference U.S. Government activity |
| SAE J1453-1 | 5/9 Secondary reference U.S. Government activity |
| SAE-J1453/3 | 3/1 Design control — primary reference Sae International Dba Sae International |
| J1453 | 5/9 Secondary reference U.S. Government activity |
| SAE J1453-1 | 5/9 Secondary reference Sae International Dba Sae International |
| 6-6 520281SA | 5/9 Secondary reference U.S. Government activity |
| SAE J1453-3 6-6 520281SA | 5/9 Secondary reference U.S. Government activity |
| SAE J1453-3 | 5/9 Secondary reference U.S. Government activity |
| J1453 6-6 520281SA | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-539-3573 is a Elbow,swivel Flange to Tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-539-3573 has 1 manufacturer part number on file: SAE J1453-3 6-6 520281SA (Sae International Dba Sae International).
Key specifications for SAE J1453-3 6-6 520281SA: Flow Angle: 90.0 DEGREES; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END; Connection Style: SWIVEL NUT, GASKET SEAL (PIPE) SECOND END; Connection Type: THREADED EXTERNAL BOSS FIRST END. 14 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.