The Valve,ball, cataloged under National Stock Number 4820-01-259-7852, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 20 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-259-7852 |
| Primary Part Number | 803-5001003-B751 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 CAP AND 1 CHAIN |
| Nominal Pipe Size Accommodated | 1.500 INCHES SECOND END IN |
| Connection Style | SOCKET SECOND END |
| Connection Style | PLAIN (HOSE) FIRST END |
| Connection Type | THREADED EXTERNAL HOSE FIRST END |
| Connection Type | UNTHREADED INTERNAL PIPE SECOND END |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.500 INCHES FIRST END IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE PACKING |
| Material | NICKEL ALLOY STEM |
| Material | BRONZE BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Thread Series Designator | NPSH FIRST END |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 803-5001003-B751 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4820-01-259-7852 is a Valve,ball, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-259-7852 has 1 manufacturer part number on file: 803-5001003-B751 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-685-9649. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5001003-B751: Furnished Items and Quantity: 1 CAP AND 1 CHAIN; Nominal Pipe Size Accommodated: 1.500 INCHES SECOND END IN; Connection Style: SOCKET SECOND END; Connection Style: PLAIN (HOSE) FIRST END. 20 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.