PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20183MM41MValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-317-4356 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-317-4356 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-317-4356. Primary manufacturer part number: 20183MM41M.
Features
  • Valve,safety Relief — FSC 4820
  • Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS
  • Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN
  • Style Designator: ANGLE
  • Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nondefinitive Spec/std Data: B GRADE
  • Material: NICKEL ALLOY STEM
  • Specification/standard Data: 81349-MIL-V-24332 GOVERNMENT SPECIFICATION
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 4820-01-317-4356, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-317-4356
Primary Part Number20183MM41M
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusCANCELLED
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
Nominal Pipe Size Accommodated0.750 INCHES ALL ENDS IN
Style DesignatorANGLE
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nondefinitive Spec/std DataB GRADE
MaterialNICKEL ALLOY STEM
Specification/standard Data81349-MIL-V-24332 GOVERNMENT SPECIFICATION
Features ProvidedPRESSURE TIGHT OUTLET SIDE
Adjustable Pressure Range+91.0 TO 105.0 POUNDS PER SQUARE INCH LBS
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Valve Operation MethodAUTOMATIC
Bonnet Attachment MethodBOLTED
MaterialNICKEL ALLOY SEAT
Bonnet TypeINSIDE SCREW
Maximum Operating Temp165.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Connection StyleSOCKET WITH BRAZING RING ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-01-131-022920138C51SS CDS A15750 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-132-159920183-1KM41M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3040-01-152-832270400-01250-052 INTERCHANGEABLE
Connecting Link,rigid
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5315-01-164-1780 INTERCHANGEABLE
Pin,straight,headed
4820-01-196-111620183KM41M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
2590-01-217-814220183 INTERCHANGEABLE
Liner,clutch
Twg Canada Consolidated Inc
6145-01-228-33569527 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
3010-01-259-09502018-3 INTERCHANGEABLE
Gear Assembly
Huntington Ingalls Inc Div Newport News Shipbuilding
6520-01-265-138720183 INTERCHANGEABLE
Resin,restorative,dental
Kerr Corporation
4820-01-369-199120183D01R0045 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
D50UU-06 3/4 IN. Danco Valve Company (USA)
20183MM41M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20183 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20183MM41M PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
MIL-DTL-24332 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-V-24332 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20183 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4820-01-131-0229INTERCHANGEABLE
VALVE,SAFETY RELIEF
20138C51SS CDS A15750
4820-01-132-1599INTERCHANGEABLE
VALVE,SAFETY RELIEF
20183-1KM41M
3040-01-152-8322INTERCHANGEABLE
CONNECTING LINK,RIGID
70400-01250-052
5315-01-164-1780INTERCHANGEABLE
PIN,STRAIGHT,HEADED
4820-01-196-1116INTERCHANGEABLE
VALVE,SAFETY RELIEF
20183KM41M
2590-01-217-8142INTERCHANGEABLE
LINER,CLUTCH
20183
6145-01-228-3356INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
9527
3010-01-259-0950INTERCHANGEABLE
GEAR ASSEMBLY
2018-3
6520-01-265-1387INTERCHANGEABLE
RESIN,RESTORATIVE,DENTAL
20183
4820-01-369-1991INTERCHANGEABLE
VALVE,SAFETY RELIEF
20183D01R0045
6550-01-531-2897INTERCHANGEABLE
TEST KIT,INFLUENZA +B TEST
20183
5133-01-600-3112INTERCHANGEABLE
BIT,AUGER

Frequently Asked Questions

What is NSN 4820-01-317-4356?

NSN 4820-01-317-4356 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: cancelled.

What are the part numbers for NSN 4820-01-317-4356?

NSN 4820-01-317-4356 has 7 cross-referenced part numbers: D50UU-06 3/4 IN. (Danco Valve Company), 20183MM41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20183 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20183MM41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), MIL-DTL-24332 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 4820-01-317-4356?

There are 12 known substitutes for 4820-01-317-4356: 4820-01-131-0229, 4820-01-132-1599, 3040-01-152-8322 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20183MM41M?

Key specifications for 20183MM41M: Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN; Style Designator: ANGLE; Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-317-4356 still in active supply?

NSN 4820-01-317-4356 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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