PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21321-001Valve,linear,directional Control

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-410-8012 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-410-8012 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-410-8012. Primary manufacturer part number: 21321-001.
Features
  • Valve,linear,directional Control — FSC 4820
  • Spool Quantity: 1
  • Body Material: ALUMINUM ALLOY 6061
  • Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) HYDRAULIC 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 4820-01-410-8012, 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 3 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
NSN4820-01-410-8012
Primary Part Number21321-001
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
Operating Pressure and Type3000.0 POUNDS PER SQUARE INCH (PSI) HYDRAULIC OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-018-3472124-0116-001 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Viking Technologies, Ltd.
5925-00-072-6934 INTERCHANGEABLE
Circuit Breaker
9540-00-261-5107 INTERCHANGEABLE
Angle,structural
5120-00-473-64765120-00-473-6476 INTERCHANGEABLE
Wrench,adjustable
General Services Administration Federal Supply Service
9540-00-540-5942 INTERCHANGEABLE
Angle,structural
9540-00-596-3012 INTERCHANGEABLE
Angle,structural
4820-01-706-027721321-850-1 INTERCHANGEABLE
Sleeve,slide
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5340-01-723-823221321-1007-1 INTERCHANGEABLE
Connecting Link,rigid
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5340-01-723-890021321-1006-1 INTERCHANGEABLE
Holder,roller
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5340-01-723-894121321-1004-1 INTERCHANGEABLE
Retainer,helical Compression Spr
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21321-001 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21321 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5935-00-018-3472INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
124-0116-001
5925-00-072-6934INTERCHANGEABLE
CIRCUIT BREAKER
9540-00-261-5107INTERCHANGEABLE
ANGLE,STRUCTURAL
5120-00-473-6476INTERCHANGEABLE
WRENCH,ADJUSTABLE
5120-00-473-6476
9540-00-540-5942INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-596-3012INTERCHANGEABLE
ANGLE,STRUCTURAL
4820-01-706-0277INTERCHANGEABLE
SLEEVE,SLIDE
21321-850-1
5340-01-723-8232INTERCHANGEABLE
CONNECTING LINK,RIGID
21321-1007-1
5340-01-723-8900INTERCHANGEABLE
HOLDER,ROLLER
21321-1006-1
5340-01-723-8941INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
21321-1004-1
3040-01-723-8965INTERCHANGEABLE
SHAFT,STRAIGHT
21321-1001-1
5340-01-723-8972INTERCHANGEABLE
STOP,MECHANICAL
21321-1016-1

Frequently Asked Questions

What is NSN 4820-01-410-8012?

NSN 4820-01-410-8012 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 4820-01-410-8012?

NSN 4820-01-410-8012 has 2 cross-referenced part numbers: 21321-001 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21321 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-410-8012?

There are 12 known substitutes for 4820-01-410-8012: 5935-00-018-3472, 5925-00-072-6934, 9540-00-261-5107 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21321-001?

Key specifications for 21321-001: Special Features: MOUNTED ANY POSITION; Spool Quantity: 1; Body Material: ALUMINUM ALLOY 6061; Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) HYDRAULIC OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 4 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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