PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20151B01E0056Valve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-192-7127 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-192-7127 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-192-7127. Primary manufacturer part number: 20151B01E0056.
Features
  • Valve,safety Relief — FSC 4820
  • Second Connection Face to Centerline Distance: 3.250 INCHES IN
  • Valve Size: 1.250 INCHES IN
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Bonnet Type: INSIDE SCREW
  • Material: NICKEL ALLOY STEM
  • Flow Control Device: DISK
  • Bonnet Attachment Method: THREADED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Stem construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-192-7127, 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 16 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-192-7127
Primary Part Number20151B01E0056
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Second Connection Face to Centerline Distance3.250 INCHES IN
Valve Size1.250 INCHES IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bonnet TypeINSIDE SCREW
MaterialNICKEL ALLOY STEM
Flow Control DeviceDISK
Bonnet Attachment MethodTHREADED
MaterialCOPPER ALLOY BODY
Nominal Thickness0.438 INCHES ALL ENDS IN
Connection TypeFLANGE ALL ENDS
Flange ShapeROUND WITH HOLES ALL ENDS
Flange Face DesignPLAIN ALL ENDS
Adjustable Pressure Range+56.0 TO 65.0 POUNDS PER SQUARE INCH LBS
First Connection Face to Centerline Distance3.250 INCHES IN
Style DesignatorANGLE FLANGED ENDS
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3120-00-430-921020151 INTERCHANGEABLE
Bearing,sleeve
Komatsu America Corporation
5306-00-701-998120151 INTERCHANGEABLE
Bolt,ribbed Shoulder
Saginaw Products Corporation Dba Cignys
1720-00-952-423720151 INTERCHANGEABLE
Adapter,a7catapult
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
5935-01-018-171361814264-001 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation
5935-01-032-7610 INTERCHANGEABLE
Insert,electrical Connector
3040-01-094-56692015-1 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
4720-01-124-670220151 INTERCHANGEABLE
Hose,nonmetallic
Gates Corporation
4820-01-271-190520151ES41M AND 20151 INTERCHANGEABLE
Valve,relief,pressure and Temper
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
20151JS41M Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20151 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20151JS41M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20151B01E0056 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
3120-00-430-9210INTERCHANGEABLE
BEARING,SLEEVE
20151
5306-00-701-9981INTERCHANGEABLE
BOLT,RIBBED SHOULDER
20151
1720-00-952-4237INTERCHANGEABLE
ADAPTER,A7CATAPULT
20151
5935-01-018-1713INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
61814264-001
5935-01-032-7610INTERCHANGEABLE
INSERT,ELECTRICAL CONNECTOR
3040-01-094-5669INTERCHANGEABLE
CONNECTING LINK,RIGID
2015-1
4720-01-124-6702INTERCHANGEABLE
HOSE,NONMETALLIC
20151
4820-01-271-1905INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
20151ES41M AND 20151

Frequently Asked Questions

What is NSN 4820-01-192-7127?

NSN 4820-01-192-7127 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 4820-01-192-7127?

NSN 4820-01-192-7127 has 4 cross-referenced part numbers: 20151JS41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20151 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20151JS41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20151B01E0056 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-192-7127?

There are 8 known substitutes for 4820-01-192-7127: 3120-00-430-9210, 5306-00-701-9981, 1720-00-952-4237 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20151B01E0056?

Key specifications for 20151B01E0056: Second Connection Face to Centerline Distance: 3.250 INCHES IN; Valve Size: 1.250 INCHES IN; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Bonnet Type: INSIDE SCREW. 16 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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