PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6401Valve,linear,directional Control

Tactair Fluid Controls Inc · NSN 4820-00-954-8531 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-954-8531 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-954-8531. Primary manufacturer part number: 6401.
Features
  • Valve,linear,directional Control — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Tactair Fluid Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-00-954-8531, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tactair Fluid Controls Inc. This item has 2 commercial cross-references from 2 manufacturers, 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 NameValve,linear,directional Control
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTactair Fluid Controls Inc Phoenix Controls Div (CAGE 57817); Tactair Fluid Controls Inc (CAGE 70236)
Technical Specifications
ParameterValue
NSN4820-00-954-8531
Primary Part Number6401
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTactair Fluid Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-025-4841 INTERCHANGEABLE
Analyzer,frequency Deviation
5940-00-110-1753 INTERCHANGEABLE
Terminal,lug
7510-00-149-0732SMA597833-3 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5945-00-238-5197 INTERCHANGEABLE
Relay,solid State
5915-00-496-20092920137-1 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5950-00-553-72286401 INTERCHANGEABLE
Transformer,power Autotransforme
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
6695-00-847-83186401 INTERCHANGEABLE
Calibration Set,primary Referenc
Druck, Llc Dba Druck, Llc
4240-00-994-66536401-00 INTERCHANGEABLE
Case,storage and Transport,breat
Avox Systems Inc Dba Avox Systems Inc
5305-01-061-83466401 INTERCHANGEABLE
Setscrew
Clayton Manufacturing Company
6625-01-097-7435 INTERCHANGEABLE
Counter,electronic,digital Reado
Cross-Reference Index
Part NumberManufacturer
6401 Tactair Fluid Controls Inc Phoenix Controls Div (USA)
6401 PRIMARY Tactair Fluid Controls Inc (USA)
Related Parts
6625-00-025-4841INTERCHANGEABLE
ANALYZER,FREQUENCY DEVIATION
5940-00-110-1753INTERCHANGEABLE
TERMINAL,LUG
7510-00-149-0732INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
SMA597833-3
5945-00-238-5197INTERCHANGEABLE
RELAY,SOLID STATE
5915-00-496-2009INTERCHANGEABLE
FILTER,BAND PASS
2920137-1
5950-00-553-7228INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
6401
6695-00-847-8318INTERCHANGEABLE
CALIBRATION SET,PRIMARY REFERENC
6401
4240-00-994-6653INTERCHANGEABLE
CASE,STORAGE AND TRANSPORT,BREAT
6401-00
5305-01-061-8346INTERCHANGEABLE
SETSCREW
6401
6625-01-097-7435INTERCHANGEABLE
COUNTER,ELECTRONIC,DIGITAL READO
5307-01-127-1417INTERCHANGEABLE
STUD,PLAIN
6401
5210-01-139-6262INTERCHANGEABLE
INDICATOR,DIAL
6401

Frequently Asked Questions

What is NSN 4820-00-954-8531?

NSN 4820-00-954-8531 is a Valve,linear,directional Control, manufactured by Tactair Fluid Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-954-8531?

NSN 4820-00-954-8531 has 2 cross-referenced part numbers: 6401 (Tactair Fluid Controls Inc Phoenix Controls Div), 6401 (Tactair Fluid Controls Inc).

What NSN replaces 4820-00-954-8531?

There are 12 known substitutes for 4820-00-954-8531: 6625-00-025-4841, 5940-00-110-1753, 7510-00-149-0732 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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