The Ball,valve,ported, cataloged under National Stock Number 4820-01-058-2163, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-058-2163 |
| Primary Part Number | SS845-2444667PC4 |
| Item Name | Ball,valve,ported |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Port Diameter | 4.000 INCHES NOMINAL IN |
| Spherical Diameter | 6.750 INCHES NOMINAL IN |
| Port Configuration | STRAIGHT |
| Stem Accommodation Quantity | 1 |
| Port Quantity | 2 |
| Material Document and Classification | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | PLASTIC POLYTETRAFLUOROETHYLENE |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SS845-2444667PC4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2640-849X1PC4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-058-2163 is a Ball,valve,ported, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-058-2163 has 1 manufacturer part number on file: SS845-2444667PC4 (Naval Sea Systems Command).
Key specifications for SS845-2444667PC4: Port Diameter: 4.000 INCHES NOMINAL IN; Spherical Diameter: 6.750 INCHES NOMINAL IN; Port Configuration: STRAIGHT; Stem Accommodation Quantity: 1. 8 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 4820-01-058-2163 has DEMIL Code B. 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.