PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2554-3-61Seat,valve

Velan Valve Corp. · NSN 4820-01-189-3230 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-189-3230 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-189-3230. Primary manufacturer part number: 2554-3-61.
Features
  • Seat,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Velan Valve Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-189-3230, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Velan Valve Corp.. This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersVelan Valve Corp. (CAGE 57574)
Technical Specifications
ParameterValue
NSN4820-01-189-3230
Primary Part Number2554-3-61
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-054-6666 INTERCHANGEABLE
Screw,machine
5340-00-076-03962306-2 INTERCHANGEABLE
Latch Set,mortise
Adams Rite Aerospace, Inc
2520-00-236-910923062 INTERCHANGEABLE
Lining Set,friction
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
3455-00-250-0768 INTERCHANGEABLE
Cutter,milling,end
6645-00-536-1506 INTERCHANGEABLE
Lever,flyback
5950-01-069-6077 INTERCHANGEABLE
Transformer,radio Frequency
7690-01-099-4255 INTERCHANGEABLE
Marker,identification
1650-01-164-38312306-3 INTERCHANGEABLE
Motor,hydraulic
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
4820-01-197-49632563-050-063 INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
4820-01-197-507823062 ITEM 7A 1IN INTERCHANGEABLE
Disk,valve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
2554-3-61 PRIMARY Velan Valve Corp. (USA)
23062 Velan Valve Corp. (USA)
23062 ITEM 5A PRIMARY Velan Valve Corp. (USA)
23062 ITEM 5A 1 Velan Valve Corp. (USA)
Related Parts
5305-00-054-6666INTERCHANGEABLE
SCREW,MACHINE
5340-00-076-0396INTERCHANGEABLE
LATCH SET,MORTISE
2306-2
2520-00-236-9109INTERCHANGEABLE
LINING SET,FRICTION
23062
3455-00-250-0768INTERCHANGEABLE
CUTTER,MILLING,END
6645-00-536-1506INTERCHANGEABLE
LEVER,FLYBACK
5950-01-069-6077INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
7690-01-099-4255INTERCHANGEABLE
MARKER,IDENTIFICATION
1650-01-164-3831INTERCHANGEABLE
MOTOR,HYDRAULIC
2306-3
4820-01-197-4963INTERCHANGEABLE
STEM,FLUID VALVE
2563-050-063
4820-01-197-5078INTERCHANGEABLE
DISK,VALVE
23062 ITEM 7A 1IN
5999-01-426-2928INTERCHANGEABLE
KEYBOARD,DATA ENTRY
2306-2
5935-01-426-3195INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
23062

Frequently Asked Questions

What is NSN 4820-01-189-3230?

NSN 4820-01-189-3230 is a Seat,valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-189-3230?

NSN 4820-01-189-3230 has 4 cross-referenced part numbers: 2554-3-61 (Velan Valve Corp.), 23062 (Velan Valve Corp.), 23062 ITEM 5A (Velan Valve Corp.), 23062 ITEM 5A 1 (Velan Valve Corp.).

What NSN replaces 4820-01-189-3230?

There are 12 known substitutes for 4820-01-189-3230: 5305-00-054-6666, 5340-00-076-0396, 2520-00-236-9109 and 9 more. Verify interchangeability with system specifications before substitution.

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