The Tee,pipe, cataloged under National Stock Number 4730-01-629-2819, 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 11 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-629-2819 |
| Primary Part Number | 801-6405473 ASSY 50 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Style | SOCKET (PIPE) FIRST END |
| Connection Style | SOCKET (PIPE) SECOND END |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | UNTHREADED INTERNAL PIPE SECOND END |
| Nominal Thread Size | 0.312 INCHES THIRD END IN |
| Nominal Outside Diameter | 0.50 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.50 INCHES SECOND END IN |
| Thread Quantity Per Inch | 24 THIRD END |
| Material | COPPER ALLOY AND NICKEL ALLOY OVERALL |
| Thread Series Designator | UNF THIRD 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 |
|---|---|
| 801-6405473 ASSY 50 PRIMARY | Naval Sea Systems Command (USA) |
| 551-8217376-F103 PRIMARY | Naval Sea Systems Command (USA) |
| DF330778-ASSY-50 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 211073579 | 5/2 Secondary reference U.S. Government activity |
| H765-1702-F103 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-629-2819 is a Tee,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-629-2819 has 3 manufacturer part numbers on file: 801-6405473 ASSY 50 (Naval Sea Systems Command), 551-8217376-F103 (Naval Sea Systems Command), DF330778-ASSY-50 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 801-6405473 ASSY 50: Connection Style: SOCKET (PIPE) FIRST END; Connection Style: SOCKET (PIPE) SECOND END; Connection Type: UNTHREADED INTERNAL PIPE FIRST END; Connection Type: THREADED EXTERNAL TUBE THIRD END. 11 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.