PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21066-1001-1Stem,fluid Valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-415-4436 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-415-4436 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-415-4436. Primary manufacturer part number: 21066-1001-1.
Features
  • Stem,fluid Valve — FSC 4820
  • Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 416
  • Valve Model Number for Which Designed: 21066-001
  • 3 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
  • Applications requiring Steel Comp 416 construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-415-4436, 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 3 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
NSN4820-01-415-4436
Primary Part Number21066-1001-1
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 416
Valve Model Number for Which Designed21066-001
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3930-00-359-4193416X47 INTERCHANGEABLE
Retainer
David Brown Hydraulics Inc Dba Hydreco
5905-00-494-4622 INTERCHANGEABLE
Resistor,fixed,composition
5905-00-578-4807 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
5940-00-781-9898J673 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5905-00-829-28272100-0047 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Keysight Technologies Inc
5905-01-089-9507 INTERCHANGEABLE
Resistor,fixed,composition
7035-01-100-597221066 INTERCHANGEABLE
Mounting Block
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5962-01-104-4167 INTERCHANGEABLE
Microcircuit,digital-Linear
5340-01-117-470721066 INTERCHANGEABLE
Eye Hook
Norris Dispenser Company
6350-01-192-4679 INTERCHANGEABLE
Horn,signal
Cross-Reference Index
Part NumberManufacturer
21066 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21066-7 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21066-1001-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
3930-00-359-4193INTERCHANGEABLE
RETAINER
416X47
5905-00-494-4622INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5905-00-578-4807INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
5940-00-781-9898INTERCHANGEABLE
TERMINAL,LUG
J673
5905-00-829-2827INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
2100-0047
5905-01-089-9507INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
7035-01-100-5972INTERCHANGEABLE
MOUNTING BLOCK
21066
5962-01-104-4167INTERCHANGEABLE
MICROCIRCUIT,DIGITAL-LINEAR
5340-01-117-4707INTERCHANGEABLE
EYE HOOK
21066
6350-01-192-4679INTERCHANGEABLE
HORN,SIGNAL
2520-01-413-1902INTERCHANGEABLE
SLEEVE,CLUTCH,TRANSFER CASE
5714229
4730-01-415-6593INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
21317-1018-4

Frequently Asked Questions

What is NSN 4820-01-415-4436?

NSN 4820-01-415-4436 is a Stem,fluid Valve, 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 4820-01-415-4436?

NSN 4820-01-415-4436 has 3 cross-referenced part numbers: 21066 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21066-7 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21066-1001-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-415-4436?

There are 12 known substitutes for 4820-01-415-4436: 3930-00-359-4193, 5905-00-494-4622, 5905-00-578-4807 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21066-1001-1?

Key specifications for 21066-1001-1: End Item Identification: SEAWOLF CLASS SSN; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL COMP 416; Valve Model Number for Which Designed: 21066-001. 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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