PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10154Seat,valve

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4820-00-147-5842 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-147-5842 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-147-5842. Primary manufacturer part number: 10154.
Features
  • Seat,valve — FSC 4820
  • Material: STEEL OVERALL
  • Flange Diameter: 1.750 INCHES NOMINAL IN
  • 25 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 Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-147-5842, 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 25 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.

Technical Specifications
ParameterValue
NSN4820-00-147-5842
Primary Part Number10154
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
MaterialSTEEL OVERALL
Flange Diameter1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2920-00-131-592810-154 INTERCHANGEABLE
Generator,engine Accessory
Motorola Automotive Electronics
4320-00-918-29672967-AP INTERCHANGEABLE
Sleeve,shaft,pump
Acme Products & Engineering Inc
5330-01-037-802625549 INTERCHANGEABLE
Retainer,packing
Jetstream of Houston, Llp Dba Jetstream of Houston Llp
5315-01-189-719910154 INTERCHANGEABLE
Pin,hinge
Lake Shore Systems, Inc.
2990-01-241-252410154 INTERCHANGEABLE
Muffler,exhaust
Liftking Manufacturing Corp
4730-01-277-76991101-0040-060-OBN INTERCHANGEABLE
Expansion Joint,pipe
General Rubber Llc Dba General Rubber Corp
6105-01-284-54791015-4 INTERCHANGEABLE
Motor,electric
Rotron Incorporated
5340-01-319-92661015-4 INTERCHANGEABLE
Cap,protective,dust and Moisture
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5340-01-370-684110154 INTERCHANGEABLE
Plunger,quick Release
Northwestern Tools, Inc.
5120-01-430-7533 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
D15-739XPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-739ZPC380 Westinghouse Electric Corp (USA)
D15-648KPC380 Westinghouse Electric Corp (USA)
D15-739KPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
10154 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-739ZPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-739YPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
10154 Westinghouse Electric Corp Sturtevant Div (USA)
D15-648XPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-648KPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-648KPC380 Westinghouse Electric Corp Sturtevant Div (USA)
D15-648YPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-739BPC380 Westinghouse Electric Corp (USA)
D15-648BPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-648ZPC380 Westinghouse Electric Corp (USA)
D15-648YPC380 Westinghouse Electric Corp (USA)
D15-739YPC380 Westinghouse Electric Corp (USA)
D15-648ZPC380 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-739XPC380 Westinghouse Electric Corp (USA)
D15-648XPC380 Westinghouse Electric Corp (USA)
Related Parts
2920-00-131-5928INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
10-154
4320-00-918-2967INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
2967-AP
5330-01-037-8026INTERCHANGEABLE
RETAINER,PACKING
25549
5315-01-189-7199INTERCHANGEABLE
PIN,HINGE
10154
2990-01-241-2524INTERCHANGEABLE
MUFFLER,EXHAUST
10154
4730-01-277-7699INTERCHANGEABLE
EXPANSION JOINT,PIPE
1101-0040-060-OBN
6105-01-284-5479INTERCHANGEABLE
MOTOR,ELECTRIC
1015-4
5340-01-319-9266INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
1015-4
5340-01-370-6841INTERCHANGEABLE
PLUNGER,QUICK RELEASE
10154
5120-01-430-7533INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6640-01-629-6000INTERCHANGEABLE
SPATULA,LABORATORY
10154
1560-01-656-1199INTERCHANGEABLE
SUPPORT,STRUCTURAL COMPONENT,AIR
10154A02-00

Frequently Asked Questions

What is NSN 4820-00-147-5842?

NSN 4820-00-147-5842 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 4820-00-147-5842?

NSN 4820-00-147-5842 has 25 cross-referenced part numbers: D15-739XPC380 (Northrop Grumman Systems Corporation Div Marine Systems), D15-739ZPC380 (Westinghouse Electric Corp), D15-648KPC380 (Westinghouse Electric Corp), D15-739KPC380 (Northrop Grumman Systems Corporation Div Marine Systems), 10154 (Northrop Grumman Systems Corporation Div Marine Systems) and 20 more.

What NSN replaces 4820-00-147-5842?

There are 12 known substitutes for 4820-00-147-5842: 2920-00-131-5928, 4320-00-918-2967, 5330-01-037-8026 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10154?

Key specifications for 10154: Overall Height: 0.812 INCHES NOMINAL IN; Material: STEEL OVERALL; Flange Diameter: 1.750 INCHES NOMINAL IN; End Item Identification: STURTEVANT CO FORCED DRAFT BLOWER VX-7 TURBINE. 4 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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