The Valve,ball, cataloged under National Stock Number 4820-01-144-3215, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-144-3215 |
| Primary Part Number | 2640-611 ASSY B LOCK A-C |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Furnished Items and Quantity | 2 NUT AND 2 TAILPIECE |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Nominal Pipe Size Accommodated | 0.250 INCHES ALL ENDS IN |
| Valve Operation Method | MANUAL |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2640-611 ASSY B LOCK A-C PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| SS845-2050997 A | Naval Sea Systems Command (USA) |
| SS845-2050997 ASSY B LOCK A-C PRIMARY | Naval Ship Systems Command (USA) |
| 2050997 | Naval Ship Systems Command (USA) |
| 845-2050997 ASSY B LOCK A-C | Naval Ship Systems Command (USA) |
NSN 4820-01-144-3215 is a Valve,ball, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-144-3215 has 5 cross-referenced part numbers: 2640-611 ASSY B LOCK A-C (Electric Boat Corporation Div General Dynamics Electric Boat), SS845-2050997 A (Naval Sea Systems Command), SS845-2050997 ASSY B LOCK A-C (Naval Ship Systems Command), 2050997 (Naval Ship Systems Command), 845-2050997 ASSY B LOCK A-C (Naval Ship Systems Command).
There is 1 known substitute for 4820-01-144-3215: 4730-01-096-3492. Verify interchangeability with system specifications before substitution.
Key specifications for 2640-611 ASSY B LOCK A-C: Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Special Features: LOCK ASSEMBLY A-C,LOCKED SHUT; Style Designator: STRAIGHT THRU; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 9 total characteristics are documented in the Federal Logistics Information System.