PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20151ES41M AND 20151Valve,relief,pressure and Temper

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-271-1905 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-271-1905 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-271-1905. Primary manufacturer part number: 20151ES41M AND 20151.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
  • Flow Control Device: BALL
  • Material: COPPER ALLOY BODY
  • End Connection Quantity: 2
  • Temp Adjustability: NOT ADJUSTABLE
  • Material: NICKEL ALLOY STEM
  • 4 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-271-1905, 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 6 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
NSN4820-01-271-1905
Primary Part Number20151ES41M AND 20151
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Body StyleANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
Flow Control DeviceBALL
MaterialCOPPER ALLOY BODY
End Connection Quantity2
Temp AdjustabilityNOT ADJUSTABLE
MaterialNICKEL ALLOY STEM
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
4820-01-192-712720151B01E0056 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
20151ES41M AND 20151 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20151 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20151 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20151ES41M AND 20151 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
4820-01-192-7127INTERCHANGEABLE
VALVE,SAFETY RELIEF
20151B01E0056

Frequently Asked Questions

What is NSN 4820-01-271-1905?

NSN 4820-01-271-1905 is a Valve,relief,pressure and Temper, 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 4820-01-271-1905?

NSN 4820-01-271-1905 has 4 cross-referenced part numbers: 20151ES41M AND 20151 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20151 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20151 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20151ES41M AND 20151 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-271-1905?

There are 8 known substitutes for 4820-01-271-1905: 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 20151ES41M AND 20151?

Key specifications for 20151ES41M AND 20151: Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS; Flow Control Device: BALL; Material: COPPER ALLOY BODY; End Connection Quantity: 2. 7 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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