PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E8527E51M-25PSIValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-202-5586 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-202-5586 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-202-5586. Primary manufacturer part number: E8527E51M-25PSI.
Features
  • Valve,safety Relief — FSC 4820
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Material: NICKEL ALLOY FLOW CONTROL DEVICE
  • Material: COPPER ALLOY BODY
  • Connection Style: STREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
  • Opening Pressure Setting: 25.0 POUNDS PER SQUARE INCH LBS
  • Flow Control Device: DISKDISK
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 4820-01-202-5586, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-202-5586
Primary Part NumberE8527E51M-25PSI
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Nominal Outside Diameter Tube Accommodated0.750 INCHES ALL ENDS IN
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
MaterialCOPPER ALLOY BODY
Connection StyleSTREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
Opening Pressure Setting25.0 POUNDS PER SQUARE INCH LBS
Flow Control DeviceDISKDISK
Valve Operation MethodAUTOMATIC
Style DesignatorANGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5960-00-273-3041 INTERCHANGEABLE
Retainer,electron Tube
1075-00-383-82723134728B INTERCHANGEABLE
Plate,retainer
Naval Ship Systems Command
5365-00-448-47788527 INTERCHANGEABLE
Spacer,sleeve
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4310-00-572-62308527 INTERCHANGEABLE
Filter Element,intake Air Cleane
Vortox Company
5960-00-642-8602K43J197 INTERCHANGEABLE
Retainer,electron Tube
General Electric Company
3040-01-074-6371 INTERCHANGEABLE
Shaft,shouldered
5930-01-644-0199 INTERCHANGEABLE
Switch,proximity
Cross-Reference Index
Part NumberManufacturer
E8527E51M-25PSI Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
3,314,383 E8527E51M-25PSI Naval Ship Systems Command (USA)
3,314,383 Naval Ship Systems Command (USA)
8527 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
E8527E51M-25PSI PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5960-00-273-3041INTERCHANGEABLE
RETAINER,ELECTRON TUBE
1075-00-383-8272INTERCHANGEABLE
PLATE,RETAINER
3134728B
5365-00-448-4778INTERCHANGEABLE
SPACER,SLEEVE
8527
4310-00-572-6230INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
8527
5960-00-642-8602INTERCHANGEABLE
RETAINER,ELECTRON TUBE
K43J197
3040-01-074-6371INTERCHANGEABLE
SHAFT,SHOULDERED
5930-01-644-0199INTERCHANGEABLE
SWITCH,PROXIMITY

Frequently Asked Questions

What is NSN 4820-01-202-5586?

NSN 4820-01-202-5586 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 4820-01-202-5586?

NSN 4820-01-202-5586 has 5 cross-referenced part numbers: E8527E51M-25PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 3,314,383 E8527E51M-25PSI (Naval Ship Systems Command), 3,314,383 (Naval Ship Systems Command), 8527 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), E8527E51M-25PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-202-5586?

There are 7 known substitutes for 4820-01-202-5586: 5960-00-273-3041, 1075-00-383-8272, 5365-00-448-4778 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E8527E51M-25PSI?

Key specifications for E8527E51M-25PSI: Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Material: NICKEL ALLOY FLOW CONTROL DEVICE; Material: COPPER ALLOY BODY. 9 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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