PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B351Valve,ball

Belimo Aircontrols (usa), Inc. Dba Belimo Aircontrols Usa Inc · NSN 4820-01-617-1018 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-617-1018 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-617-1018. Primary manufacturer part number: B351.
Features
  • Valve,ball — FSC 4820
  • Thread Series Designator: NPT ALL ENDS
  • Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material: STEEL CORROSION RESISTING STEM
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Valve Size: 2.0 INCHES IN
  • Nominal Length: 4.90 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-617-1018, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Belimo Aircontrols (usa), Inc. Dba Belimo Aircontrols Usa Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-617-1018
Primary Part NumberB351
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBelimo Aircontrols (usa), Inc. Dba Belimo Aircontrols Usa Inc
StatusACTIVE
Thread Series DesignatorNPT ALL ENDS
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialSTEEL CORROSION RESISTING STEM
Thread DirectionRIGHT-HAND ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Valve Size2.0 INCHES IN
Nominal Length4.90 INCHES ALL ENDS IN
Maximum Operating Temp212.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4330-00-105-9812B3-5-1 INTERCHANGEABLE
Filter Element,fluid
Textron Aviation Inc
5330-00-154-4027246-44PC14 INTERCHANGEABLE
Seal,plain Encased
Insinger Machine Co
4310-00-445-5852B3-5-1 INTERCHANGEABLE
Filter Element,intake Air Cleane
Parker Hannifin Corp Dba Pneutronics
5915-01-486-1667B351 INTERCHANGEABLE
Filter Assembly,electrical
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Cross-Reference Index
Part NumberManufacturer
B351 PRIMARY Belimo Aircontrols (usa), Inc. Dba Belimo Aircontrols Usa Inc (USA)
B351 Industrial Controls Distributors Llc Div Industrial Control Distributors Llc (USA)
Related Parts
4330-00-105-9812INTERCHANGEABLE
FILTER ELEMENT,FLUID
B3-5-1
5330-00-154-4027INTERCHANGEABLE
SEAL,PLAIN ENCASED
246-44PC14
4310-00-445-5852INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
B3-5-1
5915-01-486-1667INTERCHANGEABLE
FILTER ASSEMBLY,ELECTRICAL
B351

Frequently Asked Questions

What is NSN 4820-01-617-1018?

NSN 4820-01-617-1018 is a Valve,ball, manufactured by Belimo Aircontrols (usa), Inc. Dba Belimo Aircontrols Usa Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-617-1018?

NSN 4820-01-617-1018 has 2 cross-referenced part numbers: B351 (Belimo Aircontrols (usa), Inc. Dba Belimo Aircontrols Usa Inc), B351 (Industrial Controls Distributors Llc Div Industrial Control Distributors Llc).

What NSN replaces 4820-01-617-1018?

There are 4 known substitutes for 4820-01-617-1018: 4330-00-105-9812, 5330-00-154-4027, 4310-00-445-5852 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B351?

Key specifications for B351: Thread Series Designator: NPT ALL ENDS; Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Material: STEEL CORROSION RESISTING STEM; Part Name Assigned by Controlling Agency: CONTROL VALVE. 9 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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