PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20296Valve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-077-2675 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-077-2675 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-077-2675. Primary manufacturer part number: 20296.
Features
  • Valve,safety Relief — FSC 4820
  • First Connection Face to Centerline Distance: 7.750 INCHES IN
  • Material: STEEL COMP 416 STEM
  • Raised Face Nominal Diameter: 6.187 INCHES SECOND END IN
  • Material Document and Classification: AISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEM
  • Flange Face Design: RAISED STRAIGHT ALL ENDS
  • Style Designator: ANGLE FLANGED ENDS
  • Bolt Hole Quantity: 8 ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 416 Stem construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-077-2675, 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 29 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-077-2675
Primary Part Number20296
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
First Connection Face to Centerline Distance7.750 INCHES IN
MaterialSTEEL COMP 416 STEM
Raised Face Nominal Diameter6.187 INCHES SECOND END IN
Material Document and ClassificationAISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEM
Flange Face DesignRAISED STRAIGHT ALL ENDS
Style DesignatorANGLE FLANGED ENDS
Bolt Hole Quantity8 ALL ENDS
Second Connection Face to Centerline Distance8.750 INCHES IN
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Maximum Operating Temp450.0 FAHRENHEIT SINGLE RESPONSE DEGF
Bolt Hole Nominal Diameter0.750 INCHES FIRST END IN
Flange ShapeROUND WITH HOLES ALL ENDS
Valve Size6.000 INCHES IN
Nominal Thickness1.000 INCHES FIRST END IN
Material Document and ClassificationASTM A216 ASSN STD SINGLE MATERIAL RESPONSE BODY
Valve Operation MethodAUTOMATIC
Bolt Circle Nominal Diameter9.500 INCHES FIRST END IN
Raised Face Nominal Diameter8.500 INCHES FIRST END IN
Connection TypeFLANGE ALL ENDS
MaterialSTEEL BODY
Flow Control DeviceDISK
Nominal Outside Diameter11.000 INCHES FIRST END IN
Bolt Hole Nominal Diameter0.625 INCHES SECOND END IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bolt Circle Nominal Diameter7.500 INCHES SECOND END IN
Nominal Outside Diameter9.000 INCHES SECOND END IN
Raised Face Nominal Height0.062 INCHES ALL ENDS IN
Nominal Thickness0.937 INCHES SECOND END IN
Opening Pressure Setting95.0 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5310-00-167-1344AN315-4R INTERCHANGEABLE
Nut,plain,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3895-00-355-263820296 INTERCHANGEABLE
Mat
Dressta North America Ltd
3825-00-374-69193920296 INTERCHANGEABLE
Roller Assembly
Sicard a Division of Smi-Snowblast Inc Dba Sicard
5950-00-492-0238 INTERCHANGEABLE
Reactor
4820-01-061-3458B10340.001.102 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-106-0344A12870.001.105 INTERCHANGEABLE
Cap,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5962-01-170-2340SN54LS20J INTERCHANGEABLE
Microcircuit,digital
Texas Instruments Incorporated
5365-01-186-711420296 INTERCHANGEABLE
Shim Set
Moog Inc. Dba Ampac-Isp Corp
4820-01-267-020913799001101 INTERCHANGEABLE
Lift Nut
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-267-043613765001283 INTERCHANGEABLE
Dog Lift,relief Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
20296 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
5215NA960315 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20296 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
5215NA960315 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5310-00-167-1344INTERCHANGEABLE
NUT,PLAIN,HEXAGON
AN315-4R
3895-00-355-2638INTERCHANGEABLE
MAT
20296
3825-00-374-6919INTERCHANGEABLE
ROLLER ASSEMBLY
3920296
5950-00-492-0238INTERCHANGEABLE
REACTOR
4820-01-061-3458INTERCHANGEABLE
DISK,VALVE
B10340.001.102
4820-01-106-0344INTERCHANGEABLE
CAP,VALVE
A12870.001.105
5962-01-170-2340INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SN54LS20J
5365-01-186-7114INTERCHANGEABLE
SHIM SET
20296
4820-01-267-0209INTERCHANGEABLE
LIFT NUT
13799001101
4820-01-267-0436INTERCHANGEABLE
DOG LIFT,RELIEF VALVE
13765001283
4720-01-705-5067INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
20296

Frequently Asked Questions

What is NSN 4820-01-077-2675?

NSN 4820-01-077-2675 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 4820-01-077-2675?

NSN 4820-01-077-2675 has 4 cross-referenced part numbers: 20296 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 5215NA960315 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20296 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 5215NA960315 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-077-2675?

There are 11 known substitutes for 4820-01-077-2675: 5310-00-167-1344, 3895-00-355-2638, 3825-00-374-6919 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20296?

Key specifications for 20296: First Connection Face to Centerline Distance: 7.750 INCHES IN; Material: STEEL COMP 416 STEM; Raised Face Nominal Diameter: 6.187 INCHES SECOND END IN; Material Document and Classification: AISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEM. 29 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com