The Reducer,tube, cataloged under National Stock Number 4730-01-666-6327, 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 13 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-666-6327 |
| Primary Part Number | SAE J1453-3 16-8 520123ASN |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Nominal Overall Length | 42.5 MILLIMETERS MM |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Nominal Thread Size | 1.4375 INCHES SECOND END IN |
| Nominal Thread Size | 0.8125 INCHES FIRST END IN |
| Seat Angle | 45.0 DEGREES FIRST END |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 12 SECOND END |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 16-8 520123ASN PRIMARY | Sae International Dba Sae International (USA) |
| J1453-3 16-8 520123A SN | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 16-8 520123A SN | 3/9 Design control — primary reference U.S. Government activity |
| J1453-3 | 5/9 Secondary reference U.S. Government activity |
| 16-8 520123A SN | 5/9 Secondary reference Sae International Dba Sae International |
| SAE J1453-3 16-8 520123A SN | 5/9 Secondary reference U.S. Government activity |
| J1453-3 | 5/1 Secondary reference Sae International Dba Sae International |
| SAE-J1453/3 | 3/1 Design control — primary reference Sae International Dba Sae International |
| J1453-3 16-8 520123A SN | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-666-6327 is a Reducer,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-666-6327 has 2 manufacturer part numbers on file: SAE J1453-3 16-8 520123ASN (Sae International Dba Sae International), J1453-3 16-8 520123A SN (Sae International Dba Sae International).
Key specifications for SAE J1453-3 16-8 520123ASN: Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END; Connection Style: GASKET SEAL (TUBE) FIRST END; Nominal Overall Length: 42.5 MILLIMETERS MM; Connection Type: THREADED EXTERNAL TUBE FIRST END. 13 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.