PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DSC38-3Disk,valve

Johnson Controls Inc Control Products Div · NSN 4820-00-639-9082 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-639-9082 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-639-9082. Primary manufacturer part number: DSC38-3.
Features
  • Disk,valve — FSC 4820
  • Media for Which Designed: WATER, COLD
  • Style Designator: PLAIN
  • Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Outside Diameter: 2.594 INCHES NOMINAL IN
  • Inside Diameter: 1.500 INCHES NOMINAL IN
  • Material: RUBBER
  • Temp Rating: 150.0 FAHRENHEIT NOMINAL DEGF
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-639-9082, 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 7 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-639-9082
Primary Part NumberDSC38-3
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerJohnson Controls Inc Control Products Div
StatusACTIVE
Media for Which DesignedWATER, COLD
Style DesignatorPLAIN
Pressure Rating150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Outside Diameter2.594 INCHES NOMINAL IN
Inside Diameter1.500 INCHES NOMINAL IN
MaterialRUBBER
Temp Rating150.0 FAHRENHEIT NOMINAL DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5133-00-228-1407 INTERCHANGEABLE
Drill,twist
5910-00-240-7774SM-B-171583 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5360-00-300-7632 INTERCHANGEABLE
Spring,helical,compression
3110-00-554-564800013C INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Dba Yale Materials Handling
5330-01-144-096120208 INTERCHANGEABLE
Retainer,packing
Flowserve Inc
5961-01-173-182920208 INTERCHANGEABLE
Semiconductor Device,diode
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5305-01-250-370320-208 INTERCHANGEABLE
Screw,tapping
Motorola Automotive Electronics
5820-01-316-267020-239 INTERCHANGEABLE
Receiver,radio
Radioshack Corporation Dba Radioshack
Cross-Reference Index
Part NumberManufacturer
DSC38-3 PRIMARY Johnson Controls Inc Control Products Div (USA)
20208 Desco Corp Marsh Bellofram Div (USA)
Related Parts
5133-00-228-1407INTERCHANGEABLE
DRILL,TWIST
5910-00-240-7774INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
SM-B-171583
5360-00-300-7632INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3110-00-554-5648INTERCHANGEABLE
BEARING,BALL,ANNULAR
00013C
5330-01-144-0961INTERCHANGEABLE
RETAINER,PACKING
20208
5961-01-173-1829INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
20208
5305-01-250-3703INTERCHANGEABLE
SCREW,TAPPING
20-208
5820-01-316-2670INTERCHANGEABLE
RECEIVER,RADIO
20-239

Frequently Asked Questions

What is NSN 4820-00-639-9082?

NSN 4820-00-639-9082 is a Disk,valve, 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 4820-00-639-9082?

NSN 4820-00-639-9082 has 2 cross-referenced part numbers: DSC38-3 (Johnson Controls Inc Control Products Div), 20208 (Desco Corp Marsh Bellofram Div).

What NSN replaces 4820-00-639-9082?

There are 8 known substitutes for 4820-00-639-9082: 5133-00-228-1407, 5910-00-240-7774, 5360-00-300-7632 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DSC38-3?

Key specifications for DSC38-3: Media for Which Designed: WATER, COLD; Style Designator: PLAIN; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Overall Height: 0.375 INCHES NOMINAL IN. 8 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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