PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2573-050-122Disk,valve

Velan Valve Corp. · NSN 4820-01-142-4236 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-142-4236 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-142-4236. Primary manufacturer part number: 2573-050-122.
Features
  • Disk,valve — FSC 4820
  • Style Designator: SOLID WEDGE
  • Taper Minor Diameter: 0.508 INCHES MAXIMUM IN
  • Taper Length: 0.969 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • 6 verified cross-references
  • Primary manufacturer: Velan Valve Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-142-4236, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Velan Valve Corp.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-142-4236
Primary Part Number2573-050-122
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusCANCELLED
Style DesignatorSOLID WEDGE
Taper Minor Diameter0.508 INCHES MAXIMUM IN
Taper Length0.969 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5306-00-038-106728898 INTERCHANGEABLE
Bolt,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5950-00-421-0996 INTERCHANGEABLE
Transformer,power
4710-00-837-7518 INTERCHANGEABLE
Tube Assembly,metal
3010-01-154-1154200-649G1ANDG2 INTERCHANGEABLE
Head,port
Biomarine Inc
Cross-Reference Index
Part NumberManufacturer
2574-61-146 Velan Valve Corp. (USA)
2573-050-122 PRIMARY Velan Valve Corp. (USA)
V23898 ITEM 7A 1IN Velan Valve Corp. (USA)
28898 Velan Valve Corp. (USA)
V23898 Velan Valve Corp. (USA)
2573-50-69 1IN Velan Valve Corp. (USA)
Related Parts
5306-00-038-1067INTERCHANGEABLE
BOLT,MACHINE
28898
5950-00-421-0996INTERCHANGEABLE
TRANSFORMER,POWER
4710-00-837-7518INTERCHANGEABLE
TUBE ASSEMBLY,METAL
3010-01-154-1154INTERCHANGEABLE
HEAD,PORT
200-649G1ANDG2

Frequently Asked Questions

What is NSN 4820-01-142-4236?

NSN 4820-01-142-4236 is a Disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-142-4236?

NSN 4820-01-142-4236 has 6 cross-referenced part numbers: 2574-61-146 (Velan Valve Corp.), 2573-050-122 (Velan Valve Corp.), V23898 ITEM 7A 1IN (Velan Valve Corp.), 28898 (Velan Valve Corp.), V23898 (Velan Valve Corp.) and 1 more.

What NSN replaces 4820-01-142-4236?

There are 4 known substitutes for 4820-01-142-4236: 5306-00-038-1067, 5950-00-421-0996, 4710-00-837-7518 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2573-050-122?

Key specifications for 2573-050-122: Style Designator: SOLID WEDGE; Overall Height: 1.375 INCHES NOMINAL IN; Taper Minor Diameter: 0.508 INCHES MAXIMUM IN; Taper Length: 0.969 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-142-4236 still in active supply?

NSN 4820-01-142-4236 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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