The Ball,valve,ported, cataloged under National Stock Number 4820-01-543-8445, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-543-8445 |
| Item Name | Ball,valve,ported |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Port Diameter | 1.250 INCHES NOMINAL IN |
| Spherical Diameter | 2.125 INCHES MAXIMUM IN |
| Port Configuration | STRAIGHT |
| Stem Accommodation Quantity | 1 |
| Port Quantity | 2 |
| Material Document and Classification | QQ-S-783 CL 304 COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 304 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 845-4558740 ITEM 158,162 | 3/2 Design control — primary reference U.S. Government activity |
| 2642-785-05 ITEM 158,162 | 5/2 Secondary reference U.S. Government activity |
| ER2642-785-05F1 | D/9 Drawing number reference only U.S. Government activity |
| 2641-809-42 | D/9 Drawing number reference only U.S. Government activity |
| 4558740 | D/9 Drawing number reference only U.S. Government activity |
| 4558741 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-543-8445 is a Ball,valve,ported, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-543-8445: Port Diameter: 1.250 INCHES NOMINAL IN; Spherical Diameter: 2.125 INCHES MAXIMUM IN; Port Configuration: STRAIGHT; Stem Accommodation Quantity: 1. 7 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.