The Valve,ball, cataloged under National Stock Number 4820-01-516-5619, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Appleton Marine Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-516-5619 |
| Primary Part Number | 6304521-13 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| Flange Shape | HEXAGON SECOND END |
| Flange Shape | HEXAGON FIRST END |
| Flange Shape | HEXAGON ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| 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 | 0.940 INCHES IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Nominal Thread Size | 1.000 INCHES FIRST END IN |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Face to Face Distance | 4.250 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 |
|---|---|
| 6304521-13 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| XV501SS-16 | 5/9 Secondary reference Parker Hannifin Corporation Dba Hydraulic Pump/motor Duv Div Hydraulic Pump Division |
| XV501SS-16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-516-5619 is a Valve,ball, manufactured by Appleton Marine Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-516-5619 has 1 manufacturer part number on file: 6304521-13 (Appleton Marine Inc).
Key specifications for 6304521-13: Flange Shape: HEXAGON SECOND END; Flange Shape: HEXAGON FIRST END; Flange Shape: HEXAGON ALL ENDS; Flange Face Design: PLAIN ALL ENDS. 22 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.