The Valve,ball, cataloged under National Stock Number 4820-00-045-4826, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-045-4826 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Criticality Code Justification | ZZZY |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | PACKING RETAINING |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.125 INCHES FIRST END IN |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Thread Quantity Per Inch | 12 FIRST END |
| Thread Series Designator | UN FIRST END |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 2640-166X1ASSYK1-4 | 3/1 Design control — primary reference U.S. Government activity |
| 2640-166X1ASSYAKAA1-4INL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| SS845-1889755ASSYAKAA1-4IN | 5/1 Secondary reference U.S. Government activity |
| 2640-166X1ASSYK1-4L1 | 5/1 Secondary reference U.S. Government activity |
| SS845-1889755ASSYAKAA1-4INL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 2640-166X1ASSYAKAA1-4IN | 5/1 Secondary reference U.S. Government activity |
NSN 4820-00-045-4826 is a Valve,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-045-4826: Connection Style: PLAIN (PIPE) FIRST END; Criticality Code Justification: ZZZY; Style Designator: STRAIGHT THRU; Operating Pressure: 4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 12 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.