The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-666-4877, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-666-4877 |
| Primary Part Number | SAE J1453-3 16-16 520320SN |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Flow Angle | 45.0 DEGREES |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Leg Length | 1.181 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.067 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.625 INCHES SECOND END IN |
| Nominal Thread Size | 1.5625 INCHES FIRST END IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNF SECOND 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 |
|---|---|
| J1453-3 16-16 520320SN | Sae International Dba Sae International (USA) |
| SAE J1453-3 16-16 520320SN PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 16-16 520320SN | 3/9 Design control — primary reference U.S. Government activity |
| 16-16 520320SN | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-J1453/3 | 3/1 Design control — primary reference Sae International Dba Sae International |
| J1453-3 16-16 520320SN | 5/9 Secondary reference U.S. Government activity |
| J1453-3 | 5/1 Secondary reference Sae International Dba Sae International |
| J1453-3 | 5/9 Secondary reference U.S. Government activity |
| SAE J1453-3 16-16 520320SN | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-666-4877 is a Elbow,tube to Boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-666-4877 has 2 manufacturer part numbers on file: J1453-3 16-16 520320SN (Sae International Dba Sae International), SAE J1453-3 16-16 520320SN (Sae International Dba Sae International).
Key specifications for SAE J1453-3 16-16 520320SN: Flow Angle: 45.0 DEGREES; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GASKET SEAL (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE 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.