PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5904Valve,lift-Check

Tactair Fluid Controls Inc · NSN 4820-00-945-9308 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-945-9308 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-945-9308. Primary manufacturer part number: 5904.
Features
  • Valve,lift-Check — FSC 4820
  • Connection Style: FLARE (TUBE) ALL ENDS
  • Bonnet Type: INSIDE SCREW
  • Features Provided: VALVE STEM LOCK SHIELD
  • Flow Control Device: POPPET
  • Renewable Seat Ring Type: PRESSED-IN
  • Connection Type: THREADED INTERNAL TUBE ALL ENDS
  • Thread Class: 3B ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Seat construction
General Description

The Valve,lift-Check, cataloged under National Stock Number 4820-00-945-9308, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN4820-00-945-9308
Primary Part Number5904
Item NameValve,lift-Check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTactair Fluid Controls Inc
StatusACTIVE
Connection StyleFLARE (TUBE) ALL ENDS
Bonnet TypeINSIDE SCREW
Features ProvidedVALVE STEM LOCK SHIELD
Flow Control DevicePOPPET
Renewable Seat Ring TypePRESSED-IN
Connection TypeTHREADED INTERNAL TUBE ALL ENDS
Thread Class3B ALL ENDS
MaterialSTEEL CORROSION RESISTING SEAT
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Thread DirectionRIGHT-HAND ALL ENDS
Maximum Operating Temp3000.0 FAHRENHEIT SINGLE RESPONSE DEGF
Valve Operation MethodAUTOMATIC
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI 302/SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE SEAT
Mounting FacilityTHREADED FASTENER
Mounting PositionHORIZONTAL
Disk Loading MethodSPRING
Bonnet Attachment MethodPRESSURE SEAL, RING TYPE
Style DesignatorSTRAIGHT THRU
Nominal Thread Size0.437 INCHES ALL ENDS IN
Test Data Document70236-T1175 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Thread Series DesignatorUNF ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Surface TreatmentENAMEL
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Nominal Outside Diameter Tube Accommodated0.250 INCHES ALL ENDS IN
Material Document and ClassificationQQ-A-225/6,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY
MaterialALUMINUM ALLOY 2024 BODY
Material Document and Classification66 FED STD 1ST MATERIAL RESPONSE AND AISI 302/SAE 30302 ASSN STD 2ND MATERIAL RESPONSE STEM
MaterialSTEEL CORROSION RESISTING STEM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-549-5561422176-8 INTERCHANGEABLE
Contact,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5960-00-686-85125904 INTERCHANGEABLE
Electron Tube
General Dynamics Mission Systems, Inc.
8115-00-935-59045904 INTERCHANGEABLE
Box,shipping
Connecticut Container Corp. Dba Connecticut Container Corp
3040-01-009-381401009403 INTERCHANGEABLE
Lever,manual Control
Orscheln Products Llc
4820-01-036-74305904 INTERCHANGEABLE
Valve,angle
Dragon Valves Inc
5905-01-060-90735904 INTERCHANGEABLE
Holder,resistor
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
2040-01-272-51785904 INTERCHANGEABLE
Slat,special
Cookson Company the
5985-01-374-71745904 INTERCHANGEABLE
Dummy Load,electrical
Graybar Electric Company, Inc.
7025-01-449-85815904 INTERCHANGEABLE
Codec,data Signal
Synoptics Communications Inc
5340-01-543-69205904 INTERCHANGEABLE
Lever,manual Control
Pdi Ground Support Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
5904 PRIMARY Tactair Fluid Controls Inc (USA)
5904 Tactair Fluid Controls Inc Phoenix Controls Div (USA)
32-691550-23 The Boeing Company Div Defense (USA)
Related Parts
5999-00-549-5561INTERCHANGEABLE
CONTACT,ELECTRICAL
422176-8
5960-00-686-8512INTERCHANGEABLE
ELECTRON TUBE
5904
8115-00-935-5904INTERCHANGEABLE
BOX,SHIPPING
5904
3040-01-009-3814INTERCHANGEABLE
LEVER,MANUAL CONTROL
01009403
4820-01-036-7430INTERCHANGEABLE
VALVE,ANGLE
5904
5905-01-060-9073INTERCHANGEABLE
HOLDER,RESISTOR
5904
2040-01-272-5178INTERCHANGEABLE
SLAT,SPECIAL
5904
5985-01-374-7174INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
5904
7025-01-449-8581INTERCHANGEABLE
CODEC,DATA SIGNAL
5904
5340-01-543-6920INTERCHANGEABLE
LEVER,MANUAL CONTROL
5904
5310-01-553-5991INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5904
5340-01-556-5262INTERCHANGEABLE
BRACKET,MOUNTING
5904-10

Frequently Asked Questions

What is NSN 4820-00-945-9308?

NSN 4820-00-945-9308 is a Valve,lift-Check, manufactured by Tactair Fluid Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-945-9308?

NSN 4820-00-945-9308 has 3 cross-referenced part numbers: 5904 (Tactair Fluid Controls Inc), 5904 (Tactair Fluid Controls Inc Phoenix Controls Div), 32-691550-23 (The Boeing Company Div Defense).

What NSN replaces 4820-00-945-9308?

There are 12 known substitutes for 4820-00-945-9308: 5999-00-549-5561, 5960-00-686-8512, 8115-00-935-5904 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5904?

Key specifications for 5904: Connection Style: FLARE (TUBE) ALL ENDS; Bonnet Type: INSIDE SCREW; Features Provided: VALVE STEM LOCK SHIELD; Flow Control Device: POPPET. 29 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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