PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9916Seat,valve

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4810-00-175-8861 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-175-8861 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-175-8861. Primary manufacturer part number: 9916.
Features
  • Seat,valve — FSC 4810
  • 12 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 Seat,valve, cataloged under National Stock Number 4810-00-175-8861, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Northrop Grumman Systems Corporation Div Marine Systems. This item has 12 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4810 — No Item Name Available (FSG 48)
ManufacturersNorthrop Grumman Systems Corporation Div Marine Systems (CAGE 90099); Naval Ship Systems Command (CAGE 80064); Westinghouse Electric Corp (CAGE 79500); Westinghouse Electric Corp Sturtevant Div (CAGE 80231)
Technical Specifications
ParameterValue
NSN4810-00-175-8861
Primary Part Number9916
Item NameSeat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-008-91849916 INTERCHANGEABLE
Gasket
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5120-00-056-39455120-00-056-3945 INTERCHANGEABLE
Blade,nutdriver
General Services Administration Federal Supply Service
5935-00-224-09289916 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Cinch Connectivity Solutions Inc.
5306-00-515-8608 INTERCHANGEABLE
Bolt,machine
5935-00-617-21041502-1057P1 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Raytheon Company Dba Raytheon Co
5950-01-022-20911219-100 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc.
5120-01-602-8326 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
9916 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
DD445S4901-63PC88 Naval Ship Systems Command (USA)
D15-508IPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-508EPC88 Westinghouse Electric Corp (USA)
D15-508BPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-508EPC88 Westinghouse Electric Corp Sturtevant Div (USA)
D15-508BPC88 Westinghouse Electric Corp (USA)
D15-508JPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
9916 Westinghouse Electric Corp Sturtevant Div (USA)
D15-508JPC88 Westinghouse Electric Corp (USA)
D15-508IPC88 Westinghouse Electric Corp (USA)
D15-508EPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
Related Parts
5330-00-008-9184INTERCHANGEABLE
GASKET
9916
5120-00-056-3945INTERCHANGEABLE
BLADE,NUTDRIVER
5120-00-056-3945
5935-00-224-0928INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
9916
5306-00-515-8608INTERCHANGEABLE
BOLT,MACHINE
5935-00-617-2104INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
1502-1057P1
5950-01-022-2091INTERCHANGEABLE
TRANSFORMER,POWER
1219-100
5120-01-602-8326INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 4810-00-175-8861?

NSN 4810-00-175-8861 is a Seat,valve, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-00-175-8861?

NSN 4810-00-175-8861 has 12 cross-referenced part numbers: 9916 (Northrop Grumman Systems Corporation Div Marine Systems), DD445S4901-63PC88 (Naval Ship Systems Command), D15-508IPC88 (Northrop Grumman Systems Corporation Div Marine Systems), D15-508EPC88 (Westinghouse Electric Corp), D15-508BPC88 (Northrop Grumman Systems Corporation Div Marine Systems) and 7 more.

What NSN replaces 4810-00-175-8861?

There are 7 known substitutes for 4810-00-175-8861: 5330-00-008-9184, 5120-00-056-3945, 5935-00-224-0928 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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