PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9913Seat,valve

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4820-00-388-6885 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-388-6885 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-388-6885. Primary manufacturer part number: 9913.
Features
  • Seat,valve — FSC 4820
  • Style Designator: PLAIN FLANGED
  • Seating Surface Shape: ANGULAR
  • 7 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 4820-00-388-6885, 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 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-388-6885
Primary Part Number9913
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Style DesignatorPLAIN FLANGED
Seating Surface ShapeANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5950-00-560-2771 INTERCHANGEABLE
Coil,radio Frequency
5940-00-926-819312802C3 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5355-01-015-43619913 INTERCHANGEABLE
Knob
Cdi Industries Inc
4240-01-179-01269913 INTERCHANGEABLE
Respirator,air Filtering
3m Company
5120-01-602-8328 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
D15-393IPC88 Westinghouse Electric Corp (USA)
D15-393EPC88 Westinghouse Electric Corp (USA)
9913 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
9913 Berol Usa-Rockford Plant (USA)
9913 Westinghouse Electric Corp (USA)
D15-393BPC88 Westinghouse Electric Corp (USA)
D15-393JPC88 Westinghouse Electric Corp (USA)
Related Parts
5950-00-560-2771INTERCHANGEABLE
COIL,RADIO FREQUENCY
5940-00-926-8193INTERCHANGEABLE
TERMINAL,STUD
12802C3
5355-01-015-4361INTERCHANGEABLE
KNOB
9913
4240-01-179-0126INTERCHANGEABLE
RESPIRATOR,AIR FILTERING
9913
5120-01-602-8328INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 4820-00-388-6885?

NSN 4820-00-388-6885 is a Seat,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 4820-00-388-6885?

NSN 4820-00-388-6885 has 7 cross-referenced part numbers: D15-393IPC88 (Westinghouse Electric Corp), D15-393EPC88 (Westinghouse Electric Corp), 9913 (Northrop Grumman Systems Corporation Div Marine Systems), 9913 (Berol Usa-Rockford Plant), 9913 (Westinghouse Electric Corp) and 2 more.

What NSN replaces 4820-00-388-6885?

There are 5 known substitutes for 4820-00-388-6885: 5950-00-560-2771, 5940-00-926-8193, 5355-01-015-4361 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9913?

Key specifications for 9913: Style Designator: PLAIN FLANGED; Seating Surface Shape: ANGULAR. 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