PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20198KM41MValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-232-5702 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-232-5702 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-232-5702. Primary manufacturer part number: 20198KM41M.
Features
  • Valve,safety Relief — FSC 4820
  • Material: NICKEL ALLOY SEAT
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Second Connection Face to Centerline Distance: 3.250 INCHES IN
  • Maximum Operating Temp: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Flange Shape: ROUND WITH HOLES ALL ENDS
  • Flange Face Design: PLAIN ALL ENDS
  • Bolt Hole Nominal Diameter: 0.625 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-232-5702, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-232-5702
Primary Part Number20198KM41M
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialNICKEL ALLOY SEAT
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Second Connection Face to Centerline Distance3.250 INCHES IN
Maximum Operating Temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flange ShapeROUND WITH HOLES ALL ENDS
Flange Face DesignPLAIN ALL ENDS
Bolt Hole Nominal Diameter0.625 INCHES ALL ENDS IN
Valve Operation MethodAUTOMATIC
Bonnet TypeINSIDE SCREW
First Connection Face to Centerline Distance3.250 INCHES IN
Nominal Thickness0.375 INCHES ALL ENDS IN
Bonnet Attachment MethodBOLTED
Bolt Circle Nominal Diameter3.125 INCHES ALL ENDS IN
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Nominal Outside Diameter4.250 INCHES ALL ENDS IN
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Valve Size1.000 INCHES IN
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Connection TypeFLANGE ALL ENDS
Adjustable Pressure Range+66.0 TO 75.0 POUNDS PER SQUARE INCH LBS
MaterialNICKEL ALLOY STEM
Bolt Hole Quantity4 ALL ENDS
Style DesignatorANGLE FLANGED ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-061-47825120-00-061-4782 INTERCHANGEABLE
Wrench,ratchet
General Services Administration Federal Supply Service
4310-00-168-8715 INTERCHANGEABLE
Guard,valve Strip
5305-00-987-006620-198 INTERCHANGEABLE
Screw,shoulder
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5961-01-169-4688 INTERCHANGEABLE
Semiconductor Device,diode
5930-01-308-499320198 INTERCHANGEABLE
Switch Assembly
Science Applications International Corporation
4820-01-330-942820198DM41M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5910-01-350-8099 INTERCHANGEABLE
Capacitor Assembly
6625-01-702-098220198 INTERCHANGEABLE
Test Set,electronic Circuit Plug
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
20198 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20198KM41M PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20198KM41M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5120-00-061-4782INTERCHANGEABLE
WRENCH,RATCHET
5120-00-061-4782
4310-00-168-8715INTERCHANGEABLE
GUARD,VALVE STRIP
5305-00-987-0066INTERCHANGEABLE
SCREW,SHOULDER
20-198
5961-01-169-4688INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5930-01-308-4993INTERCHANGEABLE
SWITCH ASSEMBLY
20198
4820-01-330-9428INTERCHANGEABLE
VALVE,SAFETY RELIEF
20198DM41M
5910-01-350-8099INTERCHANGEABLE
CAPACITOR ASSEMBLY
6625-01-702-0982INTERCHANGEABLE
TEST SET,ELECTRONIC CIRCUIT PLUG
20198

Frequently Asked Questions

What is NSN 4820-01-232-5702?

NSN 4820-01-232-5702 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-232-5702?

NSN 4820-01-232-5702 has 3 cross-referenced part numbers: 20198 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20198KM41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20198KM41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-232-5702?

There are 8 known substitutes for 4820-01-232-5702: 5120-00-061-4782, 4310-00-168-8715, 5305-00-987-0066 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20198KM41M?

Key specifications for 20198KM41M: Material: NICKEL ALLOY SEAT; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Second Connection Face to Centerline Distance: 3.250 INCHES IN; Maximum Operating Temp: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF. 24 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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