PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DPM18-2Diaphragm,valve,flat

Johnson Controls Inc Control Products Div · NSN 4820-00-036-3858 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-3858 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-3858. Primary manufacturer part number: DPM18-2.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Center Hole Diameter: 3.250 INCHES NOMINAL IN
  • Bolt Circle Diameter: 8.000 INCHES NOMINAL IN
  • Material Thickness: 0.135 INCHES NOMINAL IN
  • Bolt Hole Quantity: 10
  • Style Designator: FLAT
  • Material: RUBBER
  • Outside Diameter: 9.000 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-036-3858, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Johnson Controls Inc Control Products Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN4820-00-036-3858
Primary Part NumberDPM18-2
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerJohnson Controls Inc Control Products Div
StatusACTIVE
Center Hole Diameter3.250 INCHES NOMINAL IN
Bolt Circle Diameter8.000 INCHES NOMINAL IN
Material Thickness0.135 INCHES NOMINAL IN
Bolt Hole Quantity10
Style DesignatorFLAT
MaterialRUBBER
Outside Diameter9.000 INCHES NOMINAL IN
Hole Diameter0.531 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-231-690723557 INTERCHANGEABLE
Roller,linear-Rotary Motion
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
4820-00-499-960523557 INTERCHANGEABLE
Poppet,shuttle
B E Aerospace Inc Services Div
5950-00-647-818123557 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
5910-01-216-1852 INTERCHANGEABLE
Capacitor,fixed,metallized,paper
6610-01-296-088010450-31875 INTERCHANGEABLE
Altimeter,pressure
Aerosonic Llc
4810-01-497-5338 INTERCHANGEABLE
Valve,linear,directional Control
4810-01-497-5343 INTERCHANGEABLE
Valve,solenoid
4810-01-497-5785 INTERCHANGEABLE
Stem,fluid Valve
4810-01-497-5791 INTERCHANGEABLE
Slide,directional Control Linear
4810-01-497-5798 INTERCHANGEABLE
Piston,valve
Cross-Reference Index
Part NumberManufacturer
23557 Desco Corp Marsh Bellofram Div (USA)
DPM18-2 PRIMARY Johnson Controls Inc Control Products Div (USA)
Related Parts
3120-00-231-6907INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
23557
4820-00-499-9605INTERCHANGEABLE
POPPET,SHUTTLE
23557
5950-00-647-8181INTERCHANGEABLE
TRANSFORMER,POWER
23557
5910-01-216-1852INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
6610-01-296-0880INTERCHANGEABLE
ALTIMETER,PRESSURE
10450-31875
4810-01-497-5338INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
4810-01-497-5343INTERCHANGEABLE
VALVE,SOLENOID
4810-01-497-5785INTERCHANGEABLE
STEM,FLUID VALVE
4810-01-497-5791INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
4810-01-497-5798INTERCHANGEABLE
PISTON,VALVE
5365-01-498-2637INTERCHANGEABLE
PLUG,MACHINE THREAD
5365-01-498-2716INTERCHANGEABLE
PLUG,MACHINE THREAD

Frequently Asked Questions

What is NSN 4820-00-036-3858?

NSN 4820-00-036-3858 is a Diaphragm,valve,flat, manufactured by Johnson Controls Inc Control Products Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-036-3858?

NSN 4820-00-036-3858 has 2 cross-referenced part numbers: 23557 (Desco Corp Marsh Bellofram Div), DPM18-2 (Johnson Controls Inc Control Products Div).

What NSN replaces 4820-00-036-3858?

There are 12 known substitutes for 4820-00-036-3858: 3120-00-231-6907, 4820-00-499-9605, 5950-00-647-8181 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DPM18-2?

Key specifications for DPM18-2: Center Hole Diameter: 3.250 INCHES NOMINAL IN; Bolt Circle Diameter: 8.000 INCHES NOMINAL IN; Material Thickness: 0.135 INCHES NOMINAL IN; Bolt Hole Quantity: 10. 9 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