PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20183-1KM41MValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-132-1599 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-132-1599 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-132-1599. Primary manufacturer part number: 20183-1KM41M.
Features
  • Valve,safety Relief — FSC 4820
  • Material: NICKEL ALLOY STEM
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN
  • Material: COPPER ALLOY BODY
  • Material: NICKEL ALLOY SEAT
  • Valve Operation Method: AUTOMATIC
  • Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
  • Material: NICKEL ALLOY FLOW CONTROL DEVICE
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 4820-01-132-1599, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-132-1599
Primary Part Number20183-1KM41M
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialNICKEL ALLOY STEM
Nominal Outside Diameter Tube Accommodated0.750 INCHES ALL ENDS IN
MaterialCOPPER ALLOY BODY
MaterialNICKEL ALLOY SEAT
Valve Operation MethodAUTOMATIC
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection StyleSTREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
Adjustable Pressure Range+66.0 TO 75.0 POUNDS PER SQUARE INCH LBS
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Bonnet TypeINSIDE SPRING
Style DesignatorANGLE
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bonnet Attachment MethodBOLTED
Material Document and ClassificationQQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
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
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
4820-01-317-435620183MM41M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-369-199120183D01R0045 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
20183-1KM41M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20183-1KM41M PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20183 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-01-131-0229INTERCHANGEABLE
VALVE,SAFETY RELIEF
20138C51SS CDS A15750
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
4820-01-317-4356INTERCHANGEABLE
VALVE,SAFETY RELIEF
20183MM41M
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 4820-01-132-1599?

NSN 4820-01-132-1599 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 4820-01-132-1599?

NSN 4820-01-132-1599 has 3 cross-referenced part numbers: 20183-1KM41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20183-1KM41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20183 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-132-1599?

There are 12 known substitutes for 4820-01-132-1599: 4820-01-131-0229, 3040-01-152-8322, 5315-01-164-1780 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20183-1KM41M?

Key specifications for 20183-1KM41M: Material: NICKEL ALLOY STEM; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN; End Item Identification: SPRUANCE CLASS DD(963); Material: COPPER ALLOY BODY. 22 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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