PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Valve,regulating,fluid Pressure

Amtrol Inc · NSN 4820-00-289-2121 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-289-2121 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-289-2121. Primary manufacturer part number: 12.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • First End Connection Type: THREADED INTERNAL PIPE
  • Media for Which Designed: AIR AND WATER, FRESH
  • Body Style: STRAIGHT THRU
  • First End Style Designator: PLAIN
  • Thread Size and Series/type Designator: 3/4-14 NPT FIRST END
  • Filter: NOT INCLUDED
  • First End Thread Direction: RIGHT-HAND
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Brass Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-289-2121, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Amtrol Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-00-289-2121
Primary Part Number12
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAmtrol Inc
StatusACTIVE
First End Connection TypeTHREADED INTERNAL PIPE
Media for Which DesignedAIR AND WATER, FRESH
Body StyleSTRAIGHT THRU
First End Style DesignatorPLAIN
Thread Size and Series/type Designator3/4-14 NPT FIRST END
FilterNOT INCLUDED
First End Thread DirectionRIGHT-HAND
Valve Loading MethodSPRING
Unable to DecodeUNABLE TO DECODE
Maximum Inlet Pressure RatingERR-060
Regulation TypeAUTOMATIC SINGLE STAGE
Outlet Pressure SettingERR-060
Renewable Seat Ring TypeTHREADED
MaterialBRASS SEAT
End Connection Quantity2
Second End Relationship with First EndIDENTICAL
Flow Control DevicePOPPET
Temp Rating200.0 FAHRENHEIT MAXIMUM DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3805-00-197-4184 INTERCHANGEABLE
Grader,road,motorized
3010-00-239-343514879-13 INTERCHANGEABLE
Coupling,shaft,flexible
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
6685-00-242-222311F INTERCHANGEABLE
Thermometer,self-Indicating
American Society for Testing and Materials Dba Astm International
6720-00-356-6747 INTERCHANGEABLE
Arm
5365-00-375-181125006-10-6 INTERCHANGEABLE
Spacer
Hdt Expeditionary Systems Inc
3655-00-430-5077 INTERCHANGEABLE
Cartridge
5330-00-562-807507134 INTERCHANGEABLE
Rubber Strip
Cleveland Range, Llc
5910-00-615-581012F INTERCHANGEABLE
Capacitor,fixed,electrolytic
Reliance Comm/tec Corp Lorain Products Div
4820-00-829-1250 INTERCHANGEABLE
Valve,angle
5961-01-026-288412F INTERCHANGEABLE
Transistor
Lucent Technologies Inc Corporate Headquarters
Cross-Reference Index
Part NumberManufacturer
12 Amtrol Inc (USA)
12F Amtrol Inc (USA)
11F Amtrol Inc (USA)
Related Parts
3805-00-197-4184INTERCHANGEABLE
GRADER,ROAD,MOTORIZED
3010-00-239-3435INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
14879-13
6685-00-242-2223INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
11F
6720-00-356-6747INTERCHANGEABLE
ARM
5365-00-375-1811INTERCHANGEABLE
SPACER
25006-10-6
3655-00-430-5077INTERCHANGEABLE
CARTRIDGE
5330-00-562-8075INTERCHANGEABLE
RUBBER STRIP
07134
5910-00-615-5810INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
12F
4820-00-829-1250INTERCHANGEABLE
VALVE,ANGLE
5961-01-026-2884INTERCHANGEABLE
TRANSISTOR
12F
3408-01-109-4933INTERCHANGEABLE
MACHINING CENTER,LASER
4730-01-293-5112INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
12F

Frequently Asked Questions

What is NSN 4820-00-289-2121?

NSN 4820-00-289-2121 is a Valve,regulating,fluid Pressure, manufactured by Amtrol Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-289-2121?

NSN 4820-00-289-2121 has 3 cross-referenced part numbers: 12 (Amtrol Inc), 12F (Amtrol Inc), 11F (Amtrol Inc).

What NSN replaces 4820-00-289-2121?

There are 12 known substitutes for 4820-00-289-2121: 3805-00-197-4184, 3010-00-239-3435, 6685-00-242-2223 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12?

Key specifications for 12: First End Connection Type: THREADED INTERNAL PIPE; Media for Which Designed: AIR AND WATER, FRESH; Body Style: STRAIGHT THRU; First End Style Designator: PLAIN. 19 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