The Elbow,flange to Pipe, cataloged under National Stock Number 4730-01-339-7861, 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 Inventory Control Point Mechanicsburg. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-339-7861 |
| Primary Part Number | 845-6602371 PIECE 74L1 |
| Item Name | Elbow,flange to Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flow Angle | 90.0 DEGREES |
| FSC Application Data | 1.50IPS BALL VALVE COMBN |
| Flange Face Design | PLAIN SECOND END |
| Bolt Circle Nominal Diameter | 3.938 INCHES SECOND END IN |
| Criticality Code Justification | ZZZY |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | FLANGE SECOND END |
| Material Document and Classification | ASTM B564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 4.765 INCHES NOMINAL FIRST END IN |
| Leg Length | 6.375 INCHES NOMINAL SECOND END IN |
| Nominal Outside Diameter | 5.062 INCHES SECOND END IN |
| Bolt Hole Quantity | 6 SECOND END |
| Media for Which Designed | OIL SINGLE RESPONSE |
| Material | NICKEL ALLOY OVERALL |
| Nominal Thickness | 0.812 INCHES SECOND END IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 845-6602371 PIECE 74L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 845-6602371 PIECE 74 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4730-01-339-7861 is a Elbow,flange to Pipe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-339-7861 has 1 manufacturer part number on file: 845-6602371 PIECE 74L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 845-6602371 PIECE 74L1: Flange Shape: ROUND WITH HOLES SECOND END; Flow Angle: 90.0 DEGREES; FSC Application Data: 1.50IPS BALL VALVE COMBN; Flange Face Design: PLAIN SECOND END. 19 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.