PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

211697Valve,regulating,fluid Pressure

Hydro-Aire Aerospace Corp · NSN 4820-00-720-0841 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-720-0841 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-720-0841. Primary manufacturer part number: 211697.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Media for Which Designed: AIR AND OIL
  • Thread Size and Series/type Designator: 9/16-18 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
  • End Connection Quantity: 2
  • First End Thread Direction: RIGHT-HAND
  • Second End Relationship with First End: IDENTICAL
  • Regulation Type: AUTOMATIC SINGLE STAGE
  • Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-720-0841, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-720-0841
Primary Part Number211697
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusCANCELLED
Media for Which DesignedAIR AND OIL
Thread Size and Series/type Designator9/16-18 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
End Connection Quantity2
First End Thread DirectionRIGHT-HAND
Second End Relationship with First EndIDENTICAL
Regulation TypeAUTOMATIC SINGLE STAGE
Temp Rating-65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
FilterNOT INCLUDED
First End Connection TypeTHREADED INTERNAL BOSS
Body StyleSTRAIGHT THRU
First End Style DesignatorGASKET SEAL
First End Thread Class3B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5950-00-195-981812410 INTERCHANGEABLE
Reactor
Freed Transformer Co
5133-00-228-1415 INTERCHANGEABLE
Drill,twist
6210-00-299-405112410 INTERCHANGEABLE
Light,indicator
Dialight Corporation
4730-00-540-2212663SIZE1-4X1-4X1-4X1-8 INTERCHANGEABLE
Cross,pipe
Crane Co Div Valve Div
5935-00-783-5755124-10 INTERCHANGEABLE
Jack,telephone
Keysight Technologies Inc
4720-00-857-1730 INTERCHANGEABLE
Hose,nonmetallic
5915-00-896-6917 INTERCHANGEABLE
Network,depth
5950-01-056-29851-2410 INTERCHANGEABLE
Reactor
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
4510-01-146-009724235 INTERCHANGEABLE
Commode,field
Thetford Corp
5910-01-243-818521-1697 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Astronics Test Systems Inc
Cross-Reference Index
Part NumberManufacturer
211697 PRIMARY Hydro-Aire Aerospace Corp (USA)
3743886 The Boeing Company (USA)
12410 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
4273323 The Boeing Company (USA)
4273323 The Boeing Company (USA)
Related Parts
5950-00-195-9818INTERCHANGEABLE
REACTOR
12410
5133-00-228-1415INTERCHANGEABLE
DRILL,TWIST
6210-00-299-4051INTERCHANGEABLE
LIGHT,INDICATOR
12410
4730-00-540-2212INTERCHANGEABLE
CROSS,PIPE
663SIZE1-4X1-4X1-4X1-8
5935-00-783-5755INTERCHANGEABLE
JACK,TELEPHONE
124-10
4720-00-857-1730INTERCHANGEABLE
HOSE,NONMETALLIC
5915-00-896-6917INTERCHANGEABLE
NETWORK,DEPTH
5950-01-056-2985INTERCHANGEABLE
REACTOR
1-2410
4510-01-146-0097INTERCHANGEABLE
COMMODE,FIELD
24235
5910-01-243-8185INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
21-1697
5340-01-538-3095INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
12716

Frequently Asked Questions

What is NSN 4820-00-720-0841?

NSN 4820-00-720-0841 is a Valve,regulating,fluid Pressure, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-720-0841?

NSN 4820-00-720-0841 has 5 cross-referenced part numbers: 211697 (Hydro-Aire Aerospace Corp), 3743886 (The Boeing Company), 12410 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 4273323 (The Boeing Company), 4273323 (The Boeing Company).

What NSN replaces 4820-00-720-0841?

There are 11 known substitutes for 4820-00-720-0841: 5950-00-195-9818, 5133-00-228-1415, 6210-00-299-4051 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 211697?

Key specifications for 211697: Media for Which Designed: AIR AND OIL; Thread Size and Series/type Designator: 9/16-18 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END; End Connection Quantity: 2; First End Thread Direction: RIGHT-HAND. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-720-0841 still in active supply?

NSN 4820-00-720-0841 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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