PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FB1X-OKP-104-N-7Valve,check

Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division · NSN 4820-01-019-4648 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-019-4648 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-019-4648. Primary manufacturer part number: FB1X-OKP-104-N-7.
Features
  • Valve,check — FSC 4820
  • Valve Operation Method: AUTOMATIC
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Disk Loading Method: SPRING
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Flow Control Device: POPPET
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-019-4648, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-019-4648
Primary Part NumberFB1X-OKP-104-N-7
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division
StatusACTIVE
Valve Operation MethodAUTOMATIC
Thread DirectionRIGHT-HAND ALL ENDS
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Disk Loading MethodSPRING
Mounting PositionHORIZONTAL OR VERTICAL
Flow Control DevicePOPPET
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Thread Size0.500 INCHES ALL ENDS IN
Surface TreatmentCADMIUM
Media for Which DesignedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
Thread Series DesignatorNPTF ALL ENDS
Style DesignatorSTRAIGHT THRU
MaterialSTEEL OVERALL
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6105-00-031-860014304 INTERCHANGEABLE
Rotor,motor
Cornell-Carr Co., Inc.
3040-00-040-1681 INTERCHANGEABLE
Pawl
5950-00-232-513452C227 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
6350-00-366-489314304 INTERCHANGEABLE
Diaphragm,horn
Leslie Controls, Inc. Dba Leslie Controls Inc
5355-00-667-5889SMD415160 INTERCHANGEABLE
Knob
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3825-00-792-5178 INTERCHANGEABLE
Strip Dirt Control
2520-01-099-10990014304 INTERCHANGEABLE
Parts Kit,hydraulic Transmission
Parker Hannifin Corporation Div Cylinder Division
5330-01-331-8142 INTERCHANGEABLE
Packing,preformed
1680-01-545-929114304 INTERCHANGEABLE
Spring,aircraft,mat
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5985-01-613-29441430-4 INTERCHANGEABLE
Dummy Load,electrical
Spectrum Control Inc Div Weinschel
Cross-Reference Index
Part NumberManufacturer
14304 Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division (USA)
FB1X-OKP-104-N-7 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division (USA)
Related Parts
6105-00-031-8600INTERCHANGEABLE
ROTOR,MOTOR
14304
3040-00-040-1681INTERCHANGEABLE
PAWL
5950-00-232-5134INTERCHANGEABLE
TRANSFORMER,POWER
52C227
6350-00-366-4893INTERCHANGEABLE
DIAPHRAGM,HORN
14304
5355-00-667-5889INTERCHANGEABLE
KNOB
SMD415160
3825-00-792-5178INTERCHANGEABLE
STRIP DIRT CONTROL
2520-01-099-1099INTERCHANGEABLE
PARTS KIT,HYDRAULIC TRANSMISSION
0014304
5330-01-331-8142INTERCHANGEABLE
PACKING,PREFORMED
1680-01-545-9291INTERCHANGEABLE
SPRING,AIRCRAFT,MAT
14304
5985-01-613-2944INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
1430-4

Frequently Asked Questions

What is NSN 4820-01-019-4648?

NSN 4820-01-019-4648 is a Valve,check, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-019-4648?

NSN 4820-01-019-4648 has 2 cross-referenced part numbers: 14304 (Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division), FB1X-OKP-104-N-7 (Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division).

What NSN replaces 4820-01-019-4648?

There are 10 known substitutes for 4820-01-019-4648: 6105-00-031-8600, 3040-00-040-1681, 5950-00-232-5134 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FB1X-OKP-104-N-7?

Key specifications for FB1X-OKP-104-N-7: Valve Operation Method: AUTOMATIC; Thread Direction: RIGHT-HAND ALL ENDS; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Disk Loading Method: SPRING. 14 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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