PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21201-001Valve,linear,directional Control

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-418-0043 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-418-0043 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-418-0043. Primary manufacturer part number: 21201-001.
Features
  • Valve,linear,directional Control — FSC 4820
  • Spool Quantity: 1
  • Body Material: ALUMINUM ALLOY 6061
  • Valve Operation Method: MANUAL
  • Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • 2 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-418-0043, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN4820-01-418-0043
Primary Part Number21201-001
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Spool Quantity1
Body MaterialALUMINUM ALLOY 6061
Valve Operation MethodMANUAL
Operating Pressure and Type3000.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-258-2079652372 INTERCHANGEABLE
Terminal,lug
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5975-00-267-277697T075 INTERCHANGEABLE
Coupling,electrical Conduit
Egs Electrical Group Appleton Div
5310-00-282-954221201 INTERCHANGEABLE
Nut,plain,hexagon
Dresser, Llc
5310-00-486-521421201 INTERCHANGEABLE
Nut,plain,hexagon
Falls Filtration Technologies, Inc.
2915-00-931-296521201 INTERCHANGEABLE
Cover,relief Valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4510-01-116-16192120-1 INTERCHANGEABLE
Holder,water Tumbler
Charles a Starr Company Inc Dba Charles a Starr Company Inc
3040-01-188-326121201 INTERCHANGEABLE
Weight,counterbalance
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4720-01-246-804121201 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5330-01-350-046721201 INTERCHANGEABLE
Gasket
Hf Scientific Inc.
4820-01-417-940721201-1004-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21201-001 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21201 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5940-00-258-2079INTERCHANGEABLE
TERMINAL,LUG
652372
5975-00-267-2776INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
97T075
5310-00-282-9542INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21201
5310-00-486-5214INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21201
2915-00-931-2965INTERCHANGEABLE
COVER,RELIEF VALVE
21201
4510-01-116-1619INTERCHANGEABLE
HOLDER,WATER TUMBLER
2120-1
3040-01-188-3261INTERCHANGEABLE
WEIGHT,COUNTERBALANCE
21201
4720-01-246-8041INTERCHANGEABLE
HOSE,PREFORMED
21201
5330-01-350-0467INTERCHANGEABLE
GASKET
21201
4820-01-417-9407INTERCHANGEABLE
PISTON,VALVE
21201-1004-1
3040-01-424-2612INTERCHANGEABLE
SHAFT,SHOULDERED
21201-1005-1
2590-01-439-9430INTERCHANGEABLE
CAP,FILLER OPENING
2120-1

Frequently Asked Questions

What is NSN 4820-01-418-0043?

NSN 4820-01-418-0043 is a Valve,linear,directional Control, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-418-0043?

NSN 4820-01-418-0043 has 2 cross-referenced part numbers: 21201-001 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21201 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-418-0043?

There are 12 known substitutes for 4820-01-418-0043: 5940-00-258-2079, 5975-00-267-2776, 5310-00-282-9542 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21201-001?

Key specifications for 21201-001: End Item Identification: SEAWOLF CLASS SSN; Spool Quantity: 1; Special Features: VALVE SZ 2; Body Material: ALUMINUM ALLOY 6061. 6 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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