PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21335-001Valve,regulating,fluid Pressure

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-419-2540 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-419-2540 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-419-2540. Primary manufacturer part number: 21335-001.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Filter: NOT INCLUDED
  • Valve Loading Method: SPRING
  • Material: ALUMINUM ALLOY 6061 BODY
  • Flow Control Device: PISTON, SPRING LOADED
  • Body Style: STRAIGHT THRU
  • Material: STEEL FLOW CONTROL DEVICE
  • Material Document and Classification: UNABLE TO DECODE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy 6061 Body construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-419-2540, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-419-2540
Primary Part Number21335-001
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
FilterNOT INCLUDED
Valve Loading MethodSPRING
MaterialALUMINUM ALLOY 6061 BODY
Flow Control DevicePISTON, SPRING LOADED
Body StyleSTRAIGHT THRU
MaterialSTEEL FLOW CONTROL DEVICE
Material Document and ClassificationUNABLE TO DECODE
Maximum Inlet Pressure RatingERR-060
End Connection Quantity2
Remote Actuation MethodPISTON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
9540-00-288-3751 INTERCHANGEABLE
Angle,structural
5950-00-426-6682989111-30B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5945-00-906-3532 INTERCHANGEABLE
Contact,set
5961-01-112-662721335 INTERCHANGEABLE
Semiconductor Device Assembly
Varo Llc
4820-01-419-261921335-850-1 INTERCHANGEABLE
Sleeve and Slide,directional Con
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4730-01-440-239521335 INTERCHANGEABLE
Plug,pipe
Paccar Winch Inc Dba Paccar Winch Division
3110-01-516-809121335 INTERCHANGEABLE
Bearing,ball,annular
Rtx Corporation Div Pratt & Whitney
3940-01-619-579721-335 INTERCHANGEABLE
Sling,endless
Hii Unmanned Systems, Inc
Cross-Reference Index
Part NumberManufacturer
21335-001 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21335 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
211061350 Naval Sea Systems Command (USA)
Related Parts
9540-00-288-3751INTERCHANGEABLE
ANGLE,STRUCTURAL
5950-00-426-6682INTERCHANGEABLE
COIL,RADIO FREQUENCY
989111-30B
5945-00-906-3532INTERCHANGEABLE
CONTACT,SET
5961-01-112-6627INTERCHANGEABLE
SEMICONDUCTOR DEVICE ASSEMBLY
21335
4820-01-419-2619INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
21335-850-1
4730-01-440-2395INTERCHANGEABLE
PLUG,PIPE
21335
3110-01-516-8091INTERCHANGEABLE
BEARING,BALL,ANNULAR
21335
3940-01-619-5797INTERCHANGEABLE
SLING,ENDLESS
21-335

Frequently Asked Questions

What is NSN 4820-01-419-2540?

NSN 4820-01-419-2540 is a Valve,regulating,fluid Pressure, 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 4820-01-419-2540?

NSN 4820-01-419-2540 has 3 cross-referenced part numbers: 21335-001 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21335 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 211061350 (Naval Sea Systems Command).

What NSN replaces 4820-01-419-2540?

There are 8 known substitutes for 4820-01-419-2540: 9540-00-288-3751, 5950-00-426-6682, 5945-00-906-3532 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21335-001?

Key specifications for 21335-001: Special Features: USED ON VALVE ASSY, PRESSURE REDUCING; Filter: NOT INCLUDED; Valve Loading Method: SPRING; Material: ALUMINUM ALLOY 6061 BODY. 12 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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