PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20233-4-940SSValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-151-3690 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-151-3690 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-151-3690. Primary manufacturer part number: 20233-4-940SS.
Features
  • Valve,safety Relief — FSC 4820
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES ALL ENDS IN
  • Style Designator: ANGLE
  • Operating Pressure: 1725.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material Document and Classification: FED STD 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE BODY
  • Maximum Operating Temp: 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Valve Operation Method: AUTOMATIC
  • Material: STEEL COMP 304 BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 304 Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-151-3690, 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 6 commercial cross-references from 4 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
NSN4820-01-151-3690
Primary Part Number20233-4-940SS
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 Accommodated0.500 INCHES ALL ENDS IN
Style DesignatorANGLE
Operating Pressure1725.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material Document and ClassificationFED STD 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE BODY
Maximum Operating Temp165.0 FAHRENHEIT SINGLE RESPONSE DEGF
Valve Operation MethodAUTOMATIC
MaterialSTEEL COMP 304 BODY
Adjustable Pressure Range+1001.0 TO 1400.0 POUNDS PER SQUARE INCH LBS
MaterialRUBBER SYNTHETIC AND STEEL COMP 303 FLOW CONTROL DEVICE
Flow Control DeviceDISK
MaterialSTEEL COMP 303 STEM
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Connection StyleSOCKET WITH BRAZING RING (TUBE) ALL ENDS
Disk Loading MethodSPRING
Material Document and ClassificationAISI 303 ASSN STD SINGLE MATERIAL RESPONSE STEM
Material Document and ClassificationAISI 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4310-00-167-8445 INTERCHANGEABLE
Bonnet
5960-00-351-481180042 INTERCHANGEABLE
Shield,electron Tube
Mushield Co Inc
4820-01-031-324120233 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5962-01-097-0011 INTERCHANGEABLE
Microcircuit,digital
2910-01-150-1743B12502.001.103 INTERCHANGEABLE
Nozzle,valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-215-2139202332940SS INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-313-470020233 INTERCHANGEABLE
Valve,linear,directional Control
Navcon Inc
Cross-Reference Index
Part NumberManufacturer
20233 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
D41-15UU-04 1/2 Danco Valve Company (USA)
20233-4-940SS Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20233-4-940SS PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
D41-15UU-04 1/2 PRIMARY Dante Valve Company (USA)
D41-15UU-04H-1/2-1/2 Dante Valve Company (USA)
Related Parts
4310-00-167-8445INTERCHANGEABLE
BONNET
5960-00-351-4811INTERCHANGEABLE
SHIELD,ELECTRON TUBE
80042
4820-01-031-3241INTERCHANGEABLE
VALVE,SAFETY RELIEF
20233
5962-01-097-0011INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2910-01-150-1743INTERCHANGEABLE
NOZZLE,VALVE,SAFETY RELIEF
B12502.001.103
4820-01-215-2139INTERCHANGEABLE
VALVE,SAFETY RELIEF
202332940SS
4820-01-313-4700INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
20233

Frequently Asked Questions

What is NSN 4820-01-151-3690?

NSN 4820-01-151-3690 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 4820-01-151-3690?

NSN 4820-01-151-3690 has 6 cross-referenced part numbers: 20233 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D41-15UU-04 1/2 (Danco Valve Company), 20233-4-940SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20233-4-940SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), D41-15UU-04 1/2 (Dante Valve Company) and 1 more.

What NSN replaces 4820-01-151-3690?

There are 7 known substitutes for 4820-01-151-3690: 4310-00-167-8445, 5960-00-351-4811, 4820-01-031-3241 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20233-4-940SS?

Key specifications for 20233-4-940SS: Nominal Outside Diameter Tube Accommodated: 0.500 INCHES ALL ENDS IN; Style Designator: ANGLE; Operating Pressure: 1725.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Material Document and Classification: FED STD 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE BODY. 17 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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