PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3556-016-062Stem,fluid Valve

Velan Valve Corp. · NSN 4820-01-203-2275 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-203-2275 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-203-2275. Primary manufacturer part number: 3556-016-062.
Features
  • Stem,fluid Valve — FSC 4820
  • 5 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 4820-01-203-2275, 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 5 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
NSN4820-01-203-2275
Primary Part Number3556-016-062
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
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
4820-01-075-66103546-030-122 INTERCHANGEABLE
Disk,valve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
33652-6 REV D PIECE 5 Velan Valve Corp. (USA)
3556-16-63 Velan Valve Corp. (USA)
33652-6 Velan Valve Corp. (USA)
3556-016-062 PRIMARY Velan Valve Corp. (USA)
3556-01-062 Velan Valve Corp. (USA)
Related Parts
6145-01-039-9831INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
424-0307-040
4820-01-075-6610INTERCHANGEABLE
DISK,VALVE
3546-030-122

Frequently Asked Questions

What is NSN 4820-01-203-2275?

NSN 4820-01-203-2275 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 4820-01-203-2275?

NSN 4820-01-203-2275 has 5 cross-referenced part numbers: 33652-6 REV D PIECE 5 (Velan Valve Corp.), 3556-16-63 (Velan Valve Corp.), 33652-6 (Velan Valve Corp.), 3556-016-062 (Velan Valve Corp.), 3556-01-062 (Velan Valve Corp.).

What NSN replaces 4820-01-203-2275?

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

What are the specifications of 3556-016-062?

Key specifications for 3556-016-062: Special Features: MATERIAL CORROSION RESISTING STEEL TYPE 410; DISK, STEM UNION. 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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