The Valve,ball, cataloged under National Stock Number 4820-00-977-3288, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-977-3288 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Renewable Seat Ring Type | RETAINING SCREW |
| Flange Face Design | PLAIN FIRST END |
| Bolt Circle Nominal Diameter | 2.438 INCHES FIRST END IN |
| Criticality Code Justification | ZZZY |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES FIRST END IN |
| Operating Pressure | 650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.500 INCHES IN |
| Nominal Outside Diameter | 3.562 INCHES FIRST END IN |
| Bolt Hole Quantity | 3 FIRST END |
| Face to Face Distance | 8.125 INCHES IN |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Material | COPPER ALLOY 964 BODY |
| Material | NICKEL ALLOY 400 FLOW CONTROL DEVICE |
| Material | PLASTIC POLYAMIDE NYLON BODY LINING |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.719 INCHES FIRST END IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL IN ACCORDANCE WITH ACTIVITY HXQUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 2640-740ASSYRA | 5/1 Secondary reference U.S. Government activity |
| N050C1-2M0D | 3/9 Design control — primary reference P J Valves Inc |
NSN 4820-00-977-3288 is a Valve,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-977-3288: Flange Shape: ROUND WITH HOLES FIRST END; Renewable Seat Ring Type: RETAINING SCREW; Flange Face Design: PLAIN FIRST END; Bolt Circle Nominal Diameter: 2.438 INCHES FIRST END IN. 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.
NSN 4820-00-977-3288 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.