The Valve,ball, cataloged under National Stock Number 4820-01-480-3147, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-480-3147 |
| Primary Part Number | 2643-405-01 ASSY AZCP |
| 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 LEVER |
| Renewable Seat Ring Type | PRESSED-IN |
| Nominal Pipe Size Accommodated | 0.250 INCHES ALL ENDS IN |
| Connection Style | SOCKET ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM B150.UNS.C62300 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | QQS-763 CL304 COND A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | STM-A351 GRCF3M ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | PLASTIC POLYAMIDE NYLON SEAT |
| Material | STEEL CORROSION RESISTING BODY |
| Material | COPPER ALLOY 623 STEM |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | THIS VALVE MUST BE OXYGEN CLEANED FOR NITROGEN SYSTEM PER NAVSEA DWG 845-7285244 AND MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2643-405-01 ASSY AZCP | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-7285244 ASSY AZCP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 845-7285244 ASSY AZ | 3/1 Design control — primary reference Naval Sea Systems Command |
| 2643-405-01 ASSY AZ | 5/2 Secondary reference U.S. Government activity |
| 845-7285244 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-480-3147 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-480-3147 has 2 manufacturer part numbers on file: 2643-405-01 ASSY AZCP (Naval Inventory Control Point Mechanicsburg), 845-7285244 ASSY AZCP (Naval Inventory Control Point Mechanicsburg).
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-647-3894, 4820-01-698-8374, 4820-01-721-2582. Verify interchangeability with system specifications before substitution.
Key specifications for 2643-405-01 ASSY AZCP: Furnished Items and Quantity: 1 HANDLE AND 1 LEVER; Renewable Seat Ring Type: PRESSED-IN; Nominal Pipe Size Accommodated: 0.250 INCHES ALL ENDS IN; Connection Style: SOCKET ALL ENDS. 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.
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.