The Reducer,tube, cataloged under National Stock Number 4730-01-580-0338, 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 Naval Sea Systems Command. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-580-0338 |
| Primary Part Number | 6929753 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Length | 1.900 INCHES ALL ENDS IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.875 INCHES SECOND END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 14 FIRST END |
| Material | STEEL OVERALL |
| Thread Series Designator | UN AND 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 |
|---|---|
| 6929753 PRIMARY | Naval Sea Systems Command (USA) |
| J514 12-10 070120 | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| J514 12-10 070120 | 5/9 Secondary reference U.S. Government activity |
| 12-10 F50X-SS | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-580-0338 is a Reducer,tube, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-580-0338 has 2 manufacturer part numbers on file: 6929753 (Naval Sea Systems Command), J514 12-10 070120 (Sae International Dba Sae International).
Key specifications for 6929753: Nominal Length: 1.900 INCHES ALL ENDS IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Connection Type: THREADED EXTERNAL TUBE SECOND END; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES FIRST END IN. 10 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.