PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90054-1Disk,valve

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · NSN 4820-00-725-1527 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-725-1527 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-725-1527. Primary manufacturer part number: 90054-1.
Features
  • Disk,valve — FSC 4820
  • Style Designator: PLAIN
  • Material: PLASTIC
  • Outside Diameter: 0.845 INCHES NOMINAL IN
  • Inside Diameter: 0.316 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-725-1527, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 4 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-725-1527
Primary Part Number90054-1
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
StatusACTIVE
Style DesignatorPLAIN
MaterialPLASTIC
Outside Diameter0.845 INCHES NOMINAL IN
Inside Diameter0.316 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-062-0208 INTERCHANGEABLE
Semiconductor Device,diode
6680-01-111-4855 INTERCHANGEABLE
Tachometer,electrical,self-Gener
Cross-Reference Index
Part NumberManufacturer
90054-1 PRIMARY Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
Related Parts
5961-00-062-0208INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6680-01-111-4855INTERCHANGEABLE
TACHOMETER,ELECTRICAL,SELF-GENER

Frequently Asked Questions

What is NSN 4820-00-725-1527?

NSN 4820-00-725-1527 is a Disk,valve, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-725-1527?

NSN 4820-00-725-1527 has 1 cross-referenced part number: 90054-1 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).

What NSN replaces 4820-00-725-1527?

There are 2 known substitutes for 4820-00-725-1527: 5961-00-062-0208, 6680-01-111-4855. Verify interchangeability with system specifications before substitution.

What are the specifications of 90054-1?

Key specifications for 90054-1: Style Designator: PLAIN; Material: PLASTIC; Special Features: ONE 0.130 IN.W BY 0.035 IN. DEEP NOTCH ON OUTERCIRCUMFERENCE IN; Outside Diameter: 0.845 INCHES NOMINAL IN. 6 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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