PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9915Seat,valve

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4810-00-175-8834 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-175-8834 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-175-8834. Primary manufacturer part number: 9915.
Features
  • Seat,valve — FSC 4810
  • Material: STEEL CORROSION RESISTING OVERALL
  • Flange Seat to Disk End Height: 0.312 INCHES NOMINAL IN
  • Under Flange Height: 0.375 INCHES NOMINAL IN
  • Style Designator: PLAIN FLANGED
  • Body Inside Diameter: 0.562 INCHES NOMINAL IN
  • 22 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Div Marine Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4810-00-175-8834, 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. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 22 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-00-175-8834
Primary Part Number9915
Item NameSeat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
MaterialSTEEL CORROSION RESISTING OVERALL
Flange Seat to Disk End Height0.312 INCHES NOMINAL IN
Under Flange Height0.375 INCHES NOMINAL IN
Style DesignatorPLAIN FLANGED
Body Inside Diameter0.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5975-00-091-0487MT589AARN12 INTERCHANGEABLE
Base,chassis
Joint Electronics Type Designation System
4320-00-166-98499915 INTERCHANGEABLE
Ring,wearing
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5950-00-421-29891203-95 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc.
4310-01-004-35819915 INTERCHANGEABLE
Ring Set,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4240-01-246-53948576 INTERCHANGEABLE
Mask,air Filtering
3m Company
5998-01-344-7333 INTERCHANGEABLE
Electronic Components Assembly
5120-01-602-8325 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
D15-753IPC88 Westinghouse Electric Corp (USA)
D15-661EPC88 Westinghouse Electric Corp (USA)
D15-753JPC88 Westinghouse Electric Corp (USA)
D15-753IPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
9915 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
9915 Westinghouse Electric Corp Sturtevant Div (USA)
D15-661BPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-753BPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-753EPC88 Westinghouse Electric Corp (USA)
D15-753JPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-661EPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-753EPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-661JPC88 Westinghouse Electric Corp (USA)
D15-661JPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-753BPC88 Westinghouse Electric Corp (USA)
D15-661EPC88 Westinghouse Electric Corp Sturtevant Div (USA)
D15-661KPC88 Westinghouse Electric Corp (USA)
D15-661IPC88 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-661BPC88 Westinghouse Electric Corp (USA)
D15-753EPC88 Westinghouse Electric Corp Sturtevant Div (USA)
Related Parts
5975-00-091-0487INTERCHANGEABLE
BASE,CHASSIS
MT589AARN12
4320-00-166-9849INTERCHANGEABLE
RING,WEARING
9915
5950-00-421-2989INTERCHANGEABLE
TRANSFORMER,POWER
1203-95
4310-01-004-3581INTERCHANGEABLE
RING SET,PISTON
9915
4240-01-246-5394INTERCHANGEABLE
MASK,AIR FILTERING
8576
5998-01-344-7333INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5120-01-602-8325INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 4810-00-175-8834?

NSN 4810-00-175-8834 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 4810-00-175-8834?

NSN 4810-00-175-8834 has 22 cross-referenced part numbers: D15-753IPC88 (Westinghouse Electric Corp), D15-661EPC88 (Westinghouse Electric Corp), D15-753JPC88 (Westinghouse Electric Corp), D15-753IPC88 (Northrop Grumman Systems Corporation Div Marine Systems), 9915 (Northrop Grumman Systems Corporation Div Marine Systems) and 17 more.

What NSN replaces 4810-00-175-8834?

There are 7 known substitutes for 4810-00-175-8834: 5975-00-091-0487, 4320-00-166-9849, 5950-00-421-2989 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9915?

Key specifications for 9915: Material: STEEL CORROSION RESISTING OVERALL; Flange Seat to Disk End Height: 0.312 INCHES NOMINAL IN; Under Flange Height: 0.375 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 5 total characteristics are documented in the Federal Logistics Information System.

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