PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BASAA06SFFValve,safety Relief

Dante Valve Company · NSN 4820-01-343-1809 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-343-1809 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-343-1809. Primary manufacturer part number: BASAA06SFF.
Features
  • Valve,safety Relief — FSC 4820
  • Material: NICKEL ALLOY SEAT
  • Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Media for Which Designed: HYDRAZINE SINGLE RESPONSE
  • Material: COPPER ALLOY FLOW CONTROL DEVICE
  • Style Designator: ANGLE
  • Flow Control Device: DISK
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-343-1809, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dante Valve Company. Government technical data includes 19 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-343-1809
Primary Part NumberBASAA06SFF
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDante Valve Company
StatusACTIVE
MaterialNICKEL ALLOY SEAT
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Media for Which DesignedHYDRAZINE SINGLE RESPONSE
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Style DesignatorANGLE
Flow Control DeviceDISK
Connection StyleSOCKET ALL ENDS
Valve Operation MethodAUTOMATIC
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
MaterialCOPPER ALLOY STEM
MaterialCOPPER ALLOY BODY
Bonnet TypeINSIDE SPRING
Maximum Operating Temp150.0 FAHRENHEIT FIRST RESPONSE DEGF
Nominal Pipe Size Accommodated1.250 INCHES ALL ENDS IN
Features ProvidedPRESSURE TIGHT OUTLET SIDE
Bonnet Attachment MethodBOLTED
Maximum Operating Temp425.0 FAHRENHEIT SECOND RESPONSE DEGF
Disk Loading MethodSPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-221-204520284LS41M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
BASAA06SFF PRIMARY Dante Valve Company (USA)
MIL-DTL-24332 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-V-24332 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
D50UU-06-1 1/4IN Danco Valve Company (USA)
BASAA06SFF Danco Valve Company (USA)
Related Parts
4820-01-221-2045INTERCHANGEABLE
VALVE,SAFETY RELIEF
20284LS41M

Frequently Asked Questions

What is NSN 4820-01-343-1809?

NSN 4820-01-343-1809 is a Valve,safety Relief, manufactured by Dante Valve Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-343-1809?

NSN 4820-01-343-1809 has 5 cross-referenced part numbers: BASAA06SFF (Dante Valve Company), MIL-DTL-24332 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-V-24332 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), D50UU-06-1 1/4IN (Danco Valve Company), BASAA06SFF (Danco Valve Company).

What NSN replaces 4820-01-343-1809?

There is 1 known substitute for 4820-01-343-1809: 4820-01-221-2045. Verify interchangeability with system specifications before substitution.

What are the specifications of BASAA06SFF?

Key specifications for BASAA06SFF: Material: NICKEL ALLOY SEAT; Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Media for Which Designed: HYDRAZINE SINGLE RESPONSE. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com