PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E8544C41MValve,safety Relief

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-199-4474 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-199-4474 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-199-4474. Primary manufacturer part number: E8544C41M.
Features
  • Valve,safety Relief — FSC 4820
  • Bolt Hole Quantity: 6 ALL ENDS
  • Adjustable Pressure Range: +15.0 TO 19.0 POUNDS PER SQUARE INCH LBS
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Flow Control Device: DISK
  • First Connection Face to Centerline Distance: 5.500 INCHES IN
  • Nominal Outside Diameter: 6.125 INCHES ALL ENDS IN
  • Material: NICKEL ALLOY FLOW CONTROL DEVICE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Flow Control Device construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-199-4474, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4820-01-199-4474
Primary Part NumberE8544C41M
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Bolt Hole Quantity6 ALL ENDS
Adjustable Pressure Range+15.0 TO 19.0 POUNDS PER SQUARE INCH LBS
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Flow Control DeviceDISK
First Connection Face to Centerline Distance5.500 INCHES IN
Nominal Outside Diameter6.125 INCHES ALL ENDS IN
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Connection TypeFLANGE ALL ENDS
Bonnet TypeINSIDE SCREW
Bonnet Attachment MethodBOLTED
Bolt Hole Nominal Diameter0.562 INCHES ALL ENDS IN
Flange ShapeROUND WITH HOLES ALL ENDS
Valve Operation MethodAUTOMATIC
Bolt Circle Nominal Diameter5.000 INCHES ALL ENDS IN
MaterialNICKEL ALLOY SEAT
MaterialCOPPER ALLOY STEM
MaterialCOPPER ALLOY 922 BODY
Flange Face DesignPLAIN ALL ENDS
Valve Size2.500 INCHES IN
Second Connection Face to Centerline Distance5.500 INCHES IN
Nominal Thickness0.500 INCHES ALL ENDS IN
Style DesignatorANGLE FLANGED ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-144-31838544 INTERCHANGEABLE
Seat,orifice
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division
2990-00-146-0710T-8544 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
7050-00-413-22468392 INTERCHANGEABLE
Converter,digital to Analog
Analog Devices, Inc. Div Corporate Headquarters
5961-00-439-08718544 INTERCHANGEABLE
Rectifier,semiconductor Device,u
Carlisle & Finch Co
4920-00-490-25158544 INTERCHANGEABLE
Window,synchro Angl
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
3020-00-863-43208544 INTERCHANGEABLE
Gear,screw Jack
Cef Industries Inc Environ Div
3020-00-863-43218544 INTERCHANGEABLE
Pinion,screw Jack
Cef Industries Inc Environ Div
4820-01-130-8816A6794.025.132 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-131-2342D5OFF-03-2 1/2IN INTERCHANGEABLE
Valve,safety Relief
Dante Valve Company
5310-01-199-2290 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
E8544C41M PRIMARY Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8544 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-00-144-3183INTERCHANGEABLE
SEAT,ORIFICE
8544
2990-00-146-0710INTERCHANGEABLE
MUFFLER,EXHAUST
T-8544
7050-00-413-2246INTERCHANGEABLE
CONVERTER,DIGITAL TO ANALOG
8392
5961-00-439-0871INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
8544
4920-00-490-2515INTERCHANGEABLE
WINDOW,SYNCHRO ANGL
8544
3020-00-863-4320INTERCHANGEABLE
GEAR,SCREW JACK
8544
3020-00-863-4321INTERCHANGEABLE
PINION,SCREW JACK
8544
4820-01-130-8816INTERCHANGEABLE
STEM,FLUID VALVE
A6794.025.132
4820-01-131-2342INTERCHANGEABLE
VALVE,SAFETY RELIEF
D5OFF-03-2 1/2IN
5310-01-199-2290INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5996-01-207-8030INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
1680-01-218-2079INTERCHANGEABLE
GEAR BOX,FLAP JK-SC
8544

Frequently Asked Questions

What is NSN 4820-01-199-4474?

NSN 4820-01-199-4474 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-199-4474?

NSN 4820-01-199-4474 has 2 cross-referenced part numbers: E8544C41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8544 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-199-4474?

There are 12 known substitutes for 4820-01-199-4474: 4820-00-144-3183, 2990-00-146-0710, 7050-00-413-2246 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E8544C41M?

Key specifications for E8544C41M: Bolt Hole Quantity: 6 ALL ENDS; Adjustable Pressure Range: +15.0 TO 19.0 POUNDS PER SQUARE INCH LBS; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Flow Control Device: DISK. 22 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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