The Valve,ball, cataloged under National Stock Number 4820-01-389-8158, 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 17 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-389-8158 |
| Primary Part Number | 801-6408786 AY92L1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LEVER |
| Nominal Pipe Size Accommodated | 0.750 INCHES ALL ENDS IN |
| Connection Style | SOCKET ALL ENDS |
| Criticality Code Justification | ZZZY |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM A351 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-T-9047 MIL SPEC SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | MIL-T-9047 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Operating Pressure | 5100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | PLASTIC POLYAMIDE NYLON SEAT |
| Material | STEEL CORROSION RESISTING BODY |
| Material | TITANIUM ALLOY STEM |
| Material | TITANIUM ALLOY FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH 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 |
|---|---|
| 801-6408786 AY92L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| DF330646 AY 92L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211085922L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211066628L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211085922 | Naval Sea Systems Command (USA) |
| 6408786 AY 92L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 6408786 ASSY92L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 801-6408786 AY92 | 3/1 Design control — primary reference Naval Sea Systems Command |
| DF330646 AY 92 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 211066628 | 5/1 Secondary reference Naval Sea Systems Command |
| 6408786 AY 92 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-389-8158 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-389-8158 has 7 manufacturer part numbers on file: 801-6408786 AY92L1 (Naval Inventory Control Point Mechanicsburg), DF330646 AY 92L1 (Naval Inventory Control Point Mechanicsburg), 211085922L1 (Naval Inventory Control Point Mechanicsburg), 211066628L1 (Naval Inventory Control Point Mechanicsburg), 211085922 (Naval Sea Systems Command) and 2 more.
Key specifications for 801-6408786 AY92L1: Furnished Items and Quantity: 1 LEVER; Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN; Connection Style: SOCKET ALL ENDS; Criticality Code Justification: ZZZY. 17 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 4820-01-389-8158 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.