The Disk,valve, cataloged under National Stock Number 4820-01-117-9670, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-117-9670 |
| Primary Part Number | 70303053 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | The Walworth Company |
| Status | CANCELLED |
| Seat Angle | 60.0 DEGREES NOMINAL |
| Material | NICKEL ALLOY 400 |
| Style Designator | POPPET |
| Shank Diameter | 0.372 INCHES NOMINAL IN |
| Flange Diameter | 0.604 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2620-902-ASSYB PC 27 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-1889587ASSYB 1/2IN PIECE27 | Naval Ship Systems Command (USA) |
| 38210D | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 30353 | The Walworth Company (USA) |
| SS845-1889587ASSYBV1-2INPC27 | Naval Ship Systems Command (USA) |
| 303053 | The Walworth Company (USA) |
| 2620-902ASSYBV1-2INPC27 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 70303053 PRIMARY | The Walworth Company (USA) |
| 845-1889587 | Naval Ship Systems Command (USA) |
| SS845-1889587 | Naval Ship Systems Command (USA) |
| 2620-902-ASSYB PC 27 PRIMARY | The Walworth Company (USA) |
NSN 4820-01-117-9670 is a Disk,valve, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-117-9670 has 11 cross-referenced part numbers: 2620-902-ASSYB PC 27 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-1889587ASSYB 1/2IN PIECE27 (Naval Ship Systems Command), 38210D (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 30353 (The Walworth Company), SS845-1889587ASSYBV1-2INPC27 (Naval Ship Systems Command) and 6 more.
There are 12 known substitutes for 4820-01-117-9670: 7045-00-110-4183, 1650-00-386-3918, 4820-00-871-8935 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 70303053: Seat Angle: 60.0 DEGREES NOMINAL; Material: NICKEL ALLOY 400; Style Designator: POPPET; Overall Height: 0.934 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-117-9670 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.