The Valve,ball, cataloged under National Stock Number 4820-01-291-8448, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-291-8448 |
| Primary Part Number | 803-5001003-M7F2 L1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Shape | ROUND WITH HOLES THIRD END |
| Furnished Items and Quantity | 1 HANDLE |
| Flange Face Design | PLAIN FIRST END |
| Flange Face Design | PLAIN SECOND END |
| Flange Face Design | PLAIN THIRD END |
| Bolt Circle Nominal Diameter | 3.937 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 3.937 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 3.938 INCHES THIRD END IN |
| Criticality Code Justification | ZZZY |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE FIRST END |
| Connection Type | FLANGE THIRD END |
| Style Designator | CROSS FLANGED ENDS |
| Material Document and Classification | MIL-T-9047,COMP 6-6AL-4V MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE V |
| Material Document and Classification | QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | QQ-C-390,ALLOY 922 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 0.562 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.563 INCHES THIRD END IN |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.500 INCHES IN |
| Nominal Outside Diameter | 5.062 INCHES FIRST END IN |
| Nominal Outside Diameter | 5.062 INCHES SECOND END IN |
| Nominal Outside Diameter | 5.062 INCHES THIRD END IN |
| Bolt Hole Quantity | 4 THIRD END |
| Bolt Hole Quantity | 6 FIRST END |
| Bolt Hole Quantity | 6 SECOND END |
| Face to Face Distance | 4.875 INCHES IN |
| 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 |
|---|---|
| 803-5001003-M7F2 L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 803-5001003-M7F2 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-291-8448 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-291-8448 has 1 manufacturer part number on file: 803-5001003-M7F2 L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 803-5001003-M7F2 L1: Flange Shape: ROUND WITH HOLES FIRST END; Flange Shape: ROUND WITH HOLES SECOND END; Flange Shape: ROUND WITH HOLES THIRD END; Furnished Items and Quantity: 1 HANDLE. 30 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.