PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C43699PC89Seat,valve

Westinghouse Electric Corp · NSN 4820-00-155-5040 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-155-5040 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-155-5040. Primary manufacturer part number: C43699PC89.
Features
  • Seat,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Westinghouse Electric Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-155-5040, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Westinghouse Electric Corp. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersWestinghouse Electric Corp (CAGE 79500); Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (CAGE 82722)
Technical Specifications
ParameterValue
NSN4820-00-155-5040
Primary Part NumberC43699PC89
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-136-7398 INTERCHANGEABLE
Gasket
5930-00-201-2581121904ML INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Electro Switch Corp
5305-00-353-94448269 INTERCHANGEABLE
Setscrew
Cummins Inc.
4720-00-518-6757F3700 INTERCHANGEABLE
Hose Assembly,nonmetallic
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
2990-00-778-00313866266 INTERCHANGEABLE
Muffler,exhaust
General Motors Llc Dba General Motors Llc
5310-00-835-25258269 INTERCHANGEABLE
Nut,plain,hexagon
Triumph Controls, Llc Dba Triumph Controls, Llc
5998-00-948-50912684519-00 INTERCHANGEABLE
Circuit Card Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-01-107-0648 INTERCHANGEABLE
Switch,rotary
5340-01-295-36278269 INTERCHANGEABLE
Standoff,threaded,spacing
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4910-01-367-20418270 INTERCHANGEABLE
Jack,dolly Type,pneumatic
Niwot Corporation Dba Specialty Products Company Div Specialty Products Company
Cross-Reference Index
Part NumberManufacturer
C43699PC89 PRIMARY Westinghouse Electric Corp (USA)
8269 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Related Parts
5330-00-136-7398INTERCHANGEABLE
GASKET
5930-00-201-2581INTERCHANGEABLE
SWITCH,ROTARY
121904ML
5305-00-353-9444INTERCHANGEABLE
SETSCREW
8269
4720-00-518-6757INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
F3700
2990-00-778-0031INTERCHANGEABLE
MUFFLER,EXHAUST
3866266
5310-00-835-2525INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8269
5998-00-948-5091INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2684519-00
5930-01-107-0648INTERCHANGEABLE
SWITCH,ROTARY
5340-01-295-3627INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8269
4910-01-367-2041INTERCHANGEABLE
JACK,DOLLY TYPE,PNEUMATIC
8270
1680-01-486-5742INTERCHANGEABLE
FLEXSHIELD TAPE,AIR
EL-8269-8
4820-01-561-7339INTERCHANGEABLE
POST,PUSHER
08269

Frequently Asked Questions

What is NSN 4820-00-155-5040?

NSN 4820-00-155-5040 is a Seat,valve, manufactured by Westinghouse Electric Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-155-5040?

NSN 4820-00-155-5040 has 2 cross-referenced part numbers: C43699PC89 (Westinghouse Electric Corp), 8269 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp).

What NSN replaces 4820-00-155-5040?

There are 12 known substitutes for 4820-00-155-5040: 5330-00-136-7398, 5930-00-201-2581, 5305-00-353-9444 and 9 more. Verify interchangeability with system specifications before substitution.

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