The Valve,ball, cataloged under National Stock Number 4820-01-425-7904, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-425-7904 |
| Primary Part Number | 211092028L1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE AND 1 TAILPIECE |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | ASTM B446 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material | NICKEL ALLOY STEM |
| Material | PLASTIC SEAT |
| Material | NICKEL ALLOY 625 BODY |
| Material | TITANIUM FLOW CONTROL DEVICE |
| 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 B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 211092028L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 211092028 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-425-7904 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-7904 has 1 manufacturer part number on file: 211092028L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 211092028L1: Furnished Items and Quantity: 1 HANDLE AND 1 TAILPIECE; Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Criticality Code Justification: ZZZY; Material Document and Classification: ASTM B446 ASSN STD SINGLE MATERIAL RESPONSE BODY. 10 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 4820-01-425-7904 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.