The Disk,valve, cataloged under National Stock Number 4820-00-218-6054, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Northrop Grumman Systems Corporation Div Marine Systems. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-218-6054 |
| Primary Part Number | 8835 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Div Marine Systems |
| Status | ACTIVE |
| Media for Which Designed | STEAM |
| Flange Diameter | 1.719 INCHES NOMINAL IN |
| Shank Diameter | 7.747 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Seat Angle | 40.0 DEGREES NOMINAL |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| D15-631BPC644-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631RPC644-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631JPC643-644-674-972 | Westinghouse Electric Corp (USA) |
| D15-631RPC644-674-972 | Westinghouse Electric Corp (USA) |
| 8835 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-631PPC644-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631JPC644-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| 8835 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631BPC644-674-972 | Westinghouse Electric Corp (USA) |
| D15-631JPC643-644-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631QPC644-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631JPC643-644-666-674-972 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-631JPC644-674-972 | Westinghouse Electric Corp (USA) |
| D15-631QPC644-674-972 | Westinghouse Electric Corp (USA) |
| D15-631PPC644-674-972 | Westinghouse Electric Corp (USA) |
| 8835AND9235 | Westinghouse Electric Corp Sturtevant Div (USA) |
| 8835AND9235 | Westinghouse Electric Corp (USA) |
| 8835 | Westinghouse Electric Corp (USA) |
NSN 4820-00-218-6054 is a Disk,valve, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-218-6054 has 18 cross-referenced part numbers: D15-631BPC644-674-972 (Westinghouse Electric Corp Sturtevant Div), D15-631RPC644-674-972 (Westinghouse Electric Corp Sturtevant Div), D15-631JPC643-644-674-972 (Westinghouse Electric Corp), D15-631RPC644-674-972 (Westinghouse Electric Corp), 8835 (Northrop Grumman Systems Corporation Div Marine Systems) and 13 more.
There are 12 known substitutes for 4820-00-218-6054: 5950-00-023-4208, 2915-00-155-2684, 5930-00-353-2105 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8835: Media for Which Designed: STEAM; Overall Height: 3.812 INCHES NOMINAL IN; Flange Diameter: 1.719 INCHES NOMINAL IN; Shank Diameter: 7.747 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.