PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

D15-790UPC566Cap,valve

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4820-00-218-6031 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-218-6031 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-218-6031. Primary manufacturer part number: D15-790UPC566.
Features
  • Cap,valve — FSC 4820
  • Valve Model Number for Which Designed: D15-405B
  • Valve Type for Which Designed: CHECK
  • 50 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Div Marine Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 4820-00-218-6031, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-218-6031
Primary Part NumberD15-790UPC566
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Valve Model Number for Which DesignedD15-405B
Valve Type for Which DesignedCHECK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
D15-560NPC921 Westinghouse Electric Corp Sturtevant Div (USA)
D15-790UPC566 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-770LPC566 Westinghouse Electric Corp Sturtevant Div (USA)
D15-405QPC347 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-597LPC676 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-544NPC921 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-413YPC566-605 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-770SPC566 Westinghouse Electric Corp (USA)
D15-551PPC781 Westinghouse Electric Corp (USA)
D15-413CPC605 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-770SPC566 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-694BPC676 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-429PPC810 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-694QPC676 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-495PPC921 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-551PPC781 Westinghouse Electric Corp Sturtevant Div (USA)
D15-790UPC566 Westinghouse Electric Corp (USA)
D15-597BPC676 Westinghouse Electric Corp Sturtevant Div (USA)
D15-694BPC676 Westinghouse Electric Corp (USA)
D15-551LPC781 Northrop Grumman Systems Corporation Div Marine Systems (USA)
Related Parts in Valves
4820-00-000-0097
NO ITEM NAME AVAILABLE
4820-00-001-0010
VALVE,ROTARY,SELECTOR
8171E-1/4HS2
4820-00-001-0020
NO ITEM NAME AVAILABLE
4820-00-001-0021
NO ITEM NAME AVAILABLE
4820-00-001-0032
NO ITEM NAME AVAILABLE
4820-00-001-0037
VALVE,SAFETY RELIEF
D559A3M2
4820-00-001-0042
NO ITEM NAME AVAILABLE
4820-00-001-1230
NO ITEM NAME AVAILABLE

Frequently Asked Questions

What is NSN 4820-00-218-6031?

NSN 4820-00-218-6031 is a Cap,valve, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-218-6031?

NSN 4820-00-218-6031 has 50 cross-referenced part numbers: D15-560NPC921 (Westinghouse Electric Corp Sturtevant Div), D15-790UPC566 (Northrop Grumman Systems Corporation Div Marine Systems), D15-770LPC566 (Westinghouse Electric Corp Sturtevant Div), D15-405QPC347 (Northrop Grumman Systems Corporation Div Marine Systems), D15-597LPC676 (Northrop Grumman Systems Corporation Div Marine Systems) and 45 more.

What are the specifications of D15-790UPC566?

Key specifications for D15-790UPC566: Valve Model Number for Which Designed: D15-405B; Valve Type for Which Designed: CHECK. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com