The Valve,ball, cataloged under National Stock Number 4820-01-217-4571, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-217-4571 |
| Primary Part Number | 2640-611 ASSY H,HY LESS TAILPC |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Connection Style | SOCKET WITH BRAZING RING (TUBE) ALL ENDS |
| Valve Operation Method | MANUAL |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2640-611 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2640-611 ASSY H,HY LESS TAILPC PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4820-01-217-4571 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 4820-01-217-4571 has 2 cross-referenced part numbers: 2640-611 (Electric Boat Corporation Div General Dynamics Electric Boat), 2640-611 ASSY H,HY LESS TAILPC (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 6 known substitutes for 4820-01-217-4571: 4730-01-096-3492, 4820-01-145-0969, 4820-01-155-5029 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2640-611 ASSY H,HY LESS TAILPC: Nominal Outside Diameter Tube Accommodated: 1.500 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS; Valve Operation Method: MANUAL. 5 total characteristics are documented in the Federal Logistics Information System.