PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-240Valve,regulating,fluid Pressure

Matheson Co Div of G D Searle Medical Products · NSN 4820-00-828-3186 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-828-3186 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-828-3186. Primary manufacturer part number: 12-240.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Second End Connection Type: THREADED EXTERNAL GAS CYLINDER
  • Body Style: ANGLE
  • Second End Thread Direction: RIGHT-HAND
  • Thread Size and Series/type Designator: 1/4-18 NPT FIRST END
  • Renewable Seat Ring Type: PRESSED-IN
  • Thread Size and Series/type Designator: 3/8-18 NGT SECOND END
  • First End Style Designator: PLAIN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-828-3186, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Matheson Co Div of G D Searle Medical Products. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-00-828-3186
Primary Part Number12-240
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMatheson Co Div of G D Searle Medical Products
StatusACTIVE
Second End Connection TypeTHREADED EXTERNAL GAS CYLINDER
Body StyleANGLE
Second End Thread DirectionRIGHT-HAND
Thread Size and Series/type Designator1/4-18 NPT FIRST END
Renewable Seat Ring TypePRESSED-IN
Thread Size and Series/type Designator3/8-18 NGT SECOND END
First End Style DesignatorPLAIN
Furnished ItemsNEEDLE VALVE AND OUTLET PRESSURE GAGE
Media for Which DesignedAMMONIA, GASEOUS AND AMMONIA, LIQUID
First End Connection TypeTHREADED EXTERNAL PIPE
Second End Relationship with First EndNOT IDENTICAL
Second End Style DesignatorSWIVEL NUT, FLARED
End Connection Quantity2
Regulation TypeAUTOMATIC SINGLE STAGE
Valve Loading MethodSPRING
Flow Control DeviceDISK, FLAT, TOP AND BOTTOM GUIDED
FilterINCLUDED
First End Thread DirectionRIGHT-HAND
MaterialSTEEL CORROSION RESISTING SEAT
Unable to DecodeUNABLE TO DECODE
Valve Stem DesignSINGLE SEAT
Maximum Inlet Pressure RatingERR-060
Outlet Pressure Range5.0 TO 80.0 CAMERA MOUNT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-189-9285 INTERCHANGEABLE
Drill,twist
5133-00-228-1321 INTERCHANGEABLE
Drill,twist
5950-00-645-2127 INTERCHANGEABLE
Transformer,power
5120-00-757-0774 INTERCHANGEABLE
Puller,mechanical
6250-00-995-907412-240 INTERCHANGEABLE
Lampholder
Lighting Components and Design Incorporated Dba Lc&d
6210-01-147-7833 INTERCHANGEABLE
Lens,light
3455-01-203-276512240 INTERCHANGEABLE
Trepanning Tool,machine
Hougen Manufacturing, Inc
6150-01-307-0256549F INTERCHANGEABLE
Cable Assembly,special Purpose,e
Belden, Inc.
5360-01-312-158212240 INTERCHANGEABLE
Spring,helical,compression
Mag Aerospace Industries, Llc Div Safran Cabins
6240-01-344-695170A/W/EP/24PK/120V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
Cross-Reference Index
Part NumberManufacturer
12-240 PRIMARY Matheson Co Div of G D Searle Medical Products (USA)
Related Parts
5133-00-189-9285INTERCHANGEABLE
DRILL,TWIST
5133-00-228-1321INTERCHANGEABLE
DRILL,TWIST
5950-00-645-2127INTERCHANGEABLE
TRANSFORMER,POWER
5120-00-757-0774INTERCHANGEABLE
PULLER,MECHANICAL
6250-00-995-9074INTERCHANGEABLE
LAMPHOLDER
12-240
6210-01-147-7833INTERCHANGEABLE
LENS,LIGHT
3455-01-203-2765INTERCHANGEABLE
TREPANNING TOOL,MACHINE
12240
6150-01-307-0256INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
549F
5360-01-312-1582INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12240
6240-01-344-6951INTERCHANGEABLE
LAMP,INCANDESCENT
70A/W/EP/24PK/120V
5895-01-435-7373INTERCHANGEABLE
MODEM,COMMUNICATIONS
3433-01-446-0857INTERCHANGEABLE
CUTTING MACHINE,PLASMA ARC
1-2240

Frequently Asked Questions

What is NSN 4820-00-828-3186?

NSN 4820-00-828-3186 is a Valve,regulating,fluid Pressure, manufactured by Matheson Co Div of G D Searle Medical Products, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-828-3186?

NSN 4820-00-828-3186 has 1 cross-referenced part number: 12-240 (Matheson Co Div of G D Searle Medical Products).

What NSN replaces 4820-00-828-3186?

There are 12 known substitutes for 4820-00-828-3186: 5133-00-189-9285, 5133-00-228-1321, 5950-00-645-2127 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-240?

Key specifications for 12-240: Second End Connection Type: THREADED EXTERNAL GAS CYLINDER; Body Style: ANGLE; Second End Thread Direction: RIGHT-HAND; Thread Size and Series/type Designator: 1/4-18 NPT FIRST END. 24 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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