PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2563-050-063Stem,fluid Valve

Velan Valve Corp. · NSN 4820-01-197-4963 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-197-4963 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-197-4963. Primary manufacturer part number: 2563-050-063.
Features
  • Stem,fluid Valve — FSC 4820
  • Material Document and Classification: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE
  • Stem Actuating End Type: THREADED EXTERNALLY
  • Valve Type for Which Designed: GATE
  • Largest Outside Diameter: 0.562 INCHES NOMINAL IN
  • Valve Size for Which Designed: 1.000 INCHES IN
  • Material: STEEL COMP 416
  • 4 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 416 construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-197-4963, 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 6 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-197-4963
Primary Part Number2563-050-063
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Material Document and ClassificationASTM A276 ASSN STD SINGLE MATERIAL RESPONSE
Stem Actuating End TypeTHREADED EXTERNALLY
Valve Type for Which DesignedGATE
Largest Outside Diameter0.562 INCHES NOMINAL IN
Valve Size for Which Designed1.000 INCHES IN
MaterialSTEEL COMP 416
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.
4820-01-189-323023062 ITEM 5A INTERCHANGEABLE
Seat,valve
Velan Valve Corp.
4820-01-197-507823062 ITEM 7A 1IN INTERCHANGEABLE
Disk,valve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
2564-50-64 Velan Valve Corp. (USA)
23062 Velan Valve Corp. (USA)
23062 ITEM 6 1IN Velan Valve Corp. (USA)
2563-050-063 PRIMARY 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
4820-01-189-3230INTERCHANGEABLE
SEAT,VALVE
23062 ITEM 5A
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 4820-01-197-4963?

NSN 4820-01-197-4963 is a Stem,fluid Valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-197-4963?

NSN 4820-01-197-4963 has 4 cross-referenced part numbers: 2564-50-64 (Velan Valve Corp.), 23062 (Velan Valve Corp.), 23062 ITEM 6 1IN (Velan Valve Corp.), 2563-050-063 (Velan Valve Corp.).

What NSN replaces 4820-01-197-4963?

There are 12 known substitutes for 4820-01-197-4963: 5305-00-054-6666, 5340-00-076-0396, 2520-00-236-9109 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2563-050-063?

Key specifications for 2563-050-063: Material Document and Classification: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE; Stem Actuating End Type: THREADED EXTERNALLY; Valve Type for Which Designed: GATE; Overall Length: 6.625 INCHES NOMINAL IN. 7 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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