PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3BV-2501Stem,fluid Valve

Velan Valve Corp. · NSN 4820-01-204-5278 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-204-5278 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-204-5278. Primary manufacturer part number: 3BV-2501.
Features
  • Stem,fluid 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 Stem,fluid Valve, cataloged under National Stock Number 4820-01-204-5278, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-204-5278
Primary Part Number3BV-2501
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-206-8638125215 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
5365-01-057-77232546-000-064 INTERCHANGEABLE
Bushing,gland
Velan Valve Corp.
5365-01-058-51083616-000-082 INTERCHANGEABLE
Bushing,yoke
Velan Valve Corp.
4820-01-058-51097-V-2901 INTERCHANGEABLE
Flange,packing
Velan Valve Corp.
4820-01-160-564233350 PIECE 24 1-4THRU1-2IN INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
7920-01-177-36337920011773633 INTERCHANGEABLE
Towel,machinery Wiping
National Industries for the Blind
6230-01-483-115833350 INTERCHANGEABLE
Flashlight
Streamlight Inc Dba Streamlight Inc
5120-01-609-602733350 INTERCHANGEABLE
Socket Set,socket Wrench
Sk Hand Tool
Cross-Reference Index
Part NumberManufacturer
33350 Velan Valve Corp. (USA)
3BV-2501 PRIMARY Velan Valve Corp. (USA)
3V-2501 Velan Valve Corp. (USA)
33350 PIECE 6 Velan Valve Corp. (USA)
Related Parts
5305-00-206-8638INTERCHANGEABLE
SCREW,MACHINE
125215
5365-01-057-7723INTERCHANGEABLE
BUSHING,GLAND
2546-000-064
5365-01-058-5108INTERCHANGEABLE
BUSHING,YOKE
3616-000-082
4820-01-058-5109INTERCHANGEABLE
FLANGE,PACKING
7-V-2901
4820-01-160-5642INTERCHANGEABLE
STEM,FLUID VALVE
33350 PIECE 24 1-4THRU1-2IN
7920-01-177-3633INTERCHANGEABLE
TOWEL,MACHINERY WIPING
7920011773633
6230-01-483-1158INTERCHANGEABLE
FLASHLIGHT
33350
5120-01-609-6027INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
33350

Frequently Asked Questions

What is NSN 4820-01-204-5278?

NSN 4820-01-204-5278 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 4820-01-204-5278?

NSN 4820-01-204-5278 has 4 cross-referenced part numbers: 33350 (Velan Valve Corp.), 3BV-2501 (Velan Valve Corp.), 3V-2501 (Velan Valve Corp.), 33350 PIECE 6 (Velan Valve Corp.).

What NSN replaces 4820-01-204-5278?

There are 8 known substitutes for 4820-01-204-5278: 5305-00-206-8638, 5365-01-057-7723, 5365-01-058-5108 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3BV-2501?

Key specifications for 3BV-2501: Special Features: STAINLESS STEEL;LEVEL ONE RQMTS DO NOT APPLY;. 1 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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