The Valve,ball, cataloged under National Stock Number 4820-01-516-5625, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-516-5625 |
| Primary Part Number | V501SS4 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Flange Shape | HEXAGON SECOND END |
| Flange Shape | HEXAGON FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Valve Size | 0.280 INCHES IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Face to Face Distance | 2.650 INCHES IN |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| V501SS4 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| 6304521-14 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| V501SS-4 | 3/9 Design control — primary reference Parker Hannifin Corporation Dba Hydraulic Pump/motor Duv Div Hydraulic Pump Division |
| V501SS-4 | 3/2 Design control — primary reference U.S. Government activity |
| XV501SS-4 | 5/9 Secondary reference Parker Hannifin Corporation Dba Hydraulic Pump/motor Duv Div Hydraulic Pump Division |
NSN 4820-01-516-5625 is a Valve,ball, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-516-5625 has 2 manufacturer part numbers on file: V501SS4 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 6304521-14 (Appleton Marine Inc).
Key specifications for V501SS4: Flange Shape: HEXAGON SECOND END; Flange Shape: HEXAGON FIRST END; Flange Face Design: PLAIN FIRST END; 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.