The Valve Assembly,ball, cataloged under National Stock Number 4820-00-902-1529, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-902-1529 |
| Item Name | Valve Assembly,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL COPPER ALLOY BODY,TITANIUM BALLS,DELRIN SEATS,650 PSI WP,SALT WATER SERVICE,BODY STYLE ANGLE,SIZE 0.500 IN. IN |
| Criticality Code Justification | ZZZY |
| 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 | S |
| Reference | Meaning |
|---|---|
| SS845-2050596ASSYATL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| SS845-2050596ASSYAT | 3/1 Design control — primary reference U.S. Government activity |
| 2640-350X1ASSYAT | 5/1 Secondary reference U.S. Government activity |
| 2640-350X1ASSYATL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 4820-00-902-1529 is a Valve Assembly,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-902-1529: General Characteristics Item Description: NICKEL COPPER ALLOY BODY,TITANIUM BALLS,DELRIN SEATS,650 PSI WP,SALT WATER SERVICE,BODY STYLE ANGLE,SIZE 0.500 IN. IN; Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 3 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.