PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50196Valve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-126-9702 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-126-9702 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-126-9702. Primary manufacturer part number: 50196.
Features
  • Valve,safety Relief — FSC 4820
  • Material: STEEL CORROSION RESISTING STEM
  • Material Document and Classification: ASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY
  • Operating Pressure: 1725.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Maximum Operating Temp: 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Connection Style: SOCKET ALL ENDS
  • Media for Which Designed: AIR FIRST RESPONSE
  • Bonnet Attachment Method: BOLTED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-126-9702, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-126-9702
Primary Part Number50196
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialSTEEL CORROSION RESISTING STEM
Material Document and ClassificationASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY
Operating Pressure1725.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp165.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection StyleSOCKET ALL ENDS
Media for Which DesignedAIR FIRST RESPONSE
Bonnet Attachment MethodBOLTED
Adjustable Pressure Range+1401.0 TO 1725.0 POUNDS PER SQUARE INCH LBS
Flow Control DeviceDISK
Bonnet TypeINSIDE SPRING
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
MaterialSTEEL CORROSION RESISTING SEAT
Valve Operation MethodAUTOMATIC
Style DesignatorANGLE
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Nominal Pipe Size Accommodated0.750 INCHES ALL ENDS IN
Media for Which DesignedGAS, INERT SECOND RESPONSE
MaterialSTEEL BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4210-00-125-986050196 INTERCHANGEABLE
Tie Bar
Young Windows Inc
4810-00-168-871300350-S4902-595811PC196 INTERCHANGEABLE
Seat,valve
Naval Ship Systems Command
5330-00-505-910052896HAX INTERCHANGEABLE
Seal
Navistar Intl Corp Truck Br Ohio Plant
5330-00-631-8216012458 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
5360-00-678-0720SCB69326-4 INTERCHANGEABLE
Spring,helical,extension
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5910-01-028-5999465075-2 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Raytheon Company Dba Raytheon Co
5315-01-314-3762N50196 INTERCHANGEABLE
Pin,straight,headless
Leslie Controls, Inc. Dba Leslie Controls Inc
5315-01-471-586550196 INTERCHANGEABLE
Pin,retaining
American Apex Corporation
6530-01-708-143450196 INTERCHANGEABLE
Panel,thermal,isolation Chamber
Peli Biothermal Llc Div Biothermal Division of Pelican Products Inc.
Cross-Reference Index
Part NumberManufacturer
50196 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20196 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20196BS51SS Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20196BS51SS PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4210-00-125-9860INTERCHANGEABLE
TIE BAR
50196
4810-00-168-8713INTERCHANGEABLE
SEAT,VALVE
00350-S4902-595811PC196
5330-00-505-9100INTERCHANGEABLE
SEAL
52896HAX
5330-00-631-8216INTERCHANGEABLE
GASKET
012458
5360-00-678-0720INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
SCB69326-4
5910-01-028-5999INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
465075-2
5315-01-314-3762INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
N50196
5315-01-471-5865INTERCHANGEABLE
PIN,RETAINING
50196
6530-01-708-1434INTERCHANGEABLE
PANEL,THERMAL,ISOLATION CHAMBER
50196

Frequently Asked Questions

What is NSN 4820-01-126-9702?

NSN 4820-01-126-9702 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 4820-01-126-9702?

NSN 4820-01-126-9702 has 4 cross-referenced part numbers: 50196 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20196 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20196BS51SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20196BS51SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-126-9702?

There are 9 known substitutes for 4820-01-126-9702: 4210-00-125-9860, 4810-00-168-8713, 5330-00-505-9100 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50196?

Key specifications for 50196: Material: STEEL CORROSION RESISTING STEM; Material Document and Classification: ASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY; Operating Pressure: 1725.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 165.0 FAHRENHEIT SINGLE RESPONSE DEGF. 19 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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