The Valve,ball, cataloged under National Stock Number 4820-01-337-3899, 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 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-337-3899 |
| Primary Part Number | 211041649L1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 TAILPIECE |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Criticality Code Justification | ZZZY |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | ANGLE |
| Material Document and Classification | MIL-T-9047 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | QQ-N-286,FORM 2,COND ANL FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Operating Pressure | 1300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL POWER DRIVE LBS |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY BODY |
| Material | NICKEL ALLOY STEM |
| Material | PLASTIC POLYURETHANE SEAT |
| Material | TITANIUM ALLOY FLOW CONTROL DEVICE |
| Valve Operation Method | HYDRAULIC |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I 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 |
|---|---|
| 211041649L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| DF330613 ASSEMBLY 95L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211070072L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| DF330613 ASSEMBLY 95 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 801-6408529 ASSEMBLY 95 | 5/1 Secondary reference Naval Sea Systems Command |
| 211041649 | 5/1 Secondary reference Naval Sea Systems Command |
| 801-6408529 ASSEMBLY 95L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 211070072 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-337-3899 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-337-3899 has 3 manufacturer part numbers on file: 211041649L1 (Naval Inventory Control Point Mechanicsburg), DF330613 ASSEMBLY 95L1 (Naval Inventory Control Point Mechanicsburg), 211070072L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 211041649L1: Furnished Items and Quantity: 1 TAILPIECE; Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Criticality Code Justification: ZZZY; Connection Type: BUTT WELD PIPE ALL ENDS. 15 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 4820-01-337-3899 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.