PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3546-030-122Disk,valve

Velan Valve Corp. · NSN 4820-01-075-6610 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-075-6610 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-075-6610. Primary manufacturer part number: 3546-030-122.
Features
  • Disk,valve — FSC 4820
  • Style Designator: POPPET
  • Flange Diameter: 1.800 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • Shank Diameter: 1.512 INCHES NOMINAL IN
  • 4 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 4820-01-075-6610, 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 4 commercial cross-references 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
NSN4820-01-075-6610
Primary Part Number3546-030-122
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Style DesignatorPOPPET
Flange Diameter1.800 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Shank Diameter1.512 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6145-01-039-9831424-0307-040 INTERCHANGEABLE
Cable,special Purpose,electrical
Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems
4820-01-203-22753556-016-062 INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
33652-6 Velan Valve Corp. (USA)
33652-6REV D PIECE 4 Velan Valve Corp. (USA)
3546-030-122 PRIMARY Velan Valve Corp. (USA)
3546-30-70 Velan Valve Corp. (USA)
Related Parts
6145-01-039-9831INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
424-0307-040
4820-01-203-2275INTERCHANGEABLE
STEM,FLUID VALVE
3556-016-062

Frequently Asked Questions

What is NSN 4820-01-075-6610?

NSN 4820-01-075-6610 is a Disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-075-6610?

NSN 4820-01-075-6610 has 4 cross-referenced part numbers: 33652-6 (Velan Valve Corp.), 33652-6REV D PIECE 4 (Velan Valve Corp.), 3546-030-122 (Velan Valve Corp.), 3546-30-70 (Velan Valve Corp.).

What NSN replaces 4820-01-075-6610?

There are 2 known substitutes for 4820-01-075-6610: 6145-01-039-9831, 4820-01-203-2275. Verify interchangeability with system specifications before substitution.

What are the specifications of 3546-030-122?

Key specifications for 3546-030-122: Style Designator: POPPET; Flange Diameter: 1.800 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING; Shank Diameter: 1.512 INCHES NOMINAL IN. 5 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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