PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-103Cock,poppet Drain

Parker Hannifin Corp · NSN 4820-01-009-7598 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-009-7598 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-009-7598. Primary manufacturer part number: 20-103.
Features
  • Cock,poppet Drain — FSC 4820
  • Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END
  • Thread Series Designator: NPT SECOND END
  • Valve Operation Method: AUTOMATIC
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Style Designator: STRAIGHT THRU
  • Thread Direction: RIGHT-HAND SECOND END
  • Thread Series Designator: NPT FIRST END
Applications
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-01-009-7598, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corp. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-01-009-7598
Primary Part Number20-103
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corp
StatusACTIVE
Connection StylePLAIN, OPTIONAL END (PIPE) FIRST END
Thread Series DesignatorNPT SECOND END
Valve Operation MethodAUTOMATIC
Connection TypeTHREADED INTERNAL PIPE FIRST END
Style DesignatorSTRAIGHT THRU
Thread DirectionRIGHT-HAND SECOND END
Thread Series DesignatorNPT FIRST END
Nominal Thread Size0.125 INCHES FIRST END IN
Nominal Thread Size0.125 INCHES SECOND END IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialALUMINUM ALLOY OVERALL
Media for Which DesignedAIR SINGLE RESPONSE
Flow Control DevicePOPPET
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread DirectionRIGHT-HAND FIRST END
Surface TreatmentANODIZE
Connection StylePLAIN (PIPE) SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3431-00-018-8339 INTERCHANGEABLE
Collet,welding Torch
5315-00-039-5424 INTERCHANGEABLE
Pin,straight,headed
5133-00-228-1352 INTERCHANGEABLE
Drill,twist
5940-00-525-9154 INTERCHANGEABLE
Terminal Board
5120-00-555-285214906 INTERCHANGEABLE
Clamp,spring
Wilton Corp Wilton Tool Div
5930-00-689-1495SM-B-426392 INTERCHANGEABLE
Switch,toggle
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5940-00-983-6064 INTERCHANGEABLE
Terminal Board
5930-01-158-486520103 INTERCHANGEABLE
Switch Reed
Basic American Inc
5960-01-227-524520103 INTERCHANGEABLE
Retainer,electron Tube
L & R Manufacturing Company
5930-01-322-0287PSF101-6637 INTERCHANGEABLE
Switch,sensitive
World Magnetics Company Llc
Cross-Reference Index
Part NumberManufacturer
20-103 Parker Hannifin Corp (USA)
Related Parts
3431-00-018-8339INTERCHANGEABLE
COLLET,WELDING TORCH
5315-00-039-5424INTERCHANGEABLE
PIN,STRAIGHT,HEADED
5133-00-228-1352INTERCHANGEABLE
DRILL,TWIST
5940-00-525-9154INTERCHANGEABLE
TERMINAL BOARD
5120-00-555-2852INTERCHANGEABLE
CLAMP,SPRING
14906
5930-00-689-1495INTERCHANGEABLE
SWITCH,TOGGLE
SM-B-426392
5940-00-983-6064INTERCHANGEABLE
TERMINAL BOARD
5930-01-158-4865INTERCHANGEABLE
SWITCH REED
20103
5960-01-227-5245INTERCHANGEABLE
RETAINER,ELECTRON TUBE
20103
5930-01-322-0287INTERCHANGEABLE
SWITCH,SENSITIVE
PSF101-6637
4820-01-399-0012INTERCHANGEABLE
STEM,FLUID VALVE
A6792.044.156
4720-01-468-5593INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
20-103

Frequently Asked Questions

What is NSN 4820-01-009-7598?

NSN 4820-01-009-7598 is a Cock,poppet Drain, manufactured by Parker Hannifin Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-009-7598?

NSN 4820-01-009-7598 has 1 cross-referenced part number: 20-103 (Parker Hannifin Corp).

What NSN replaces 4820-01-009-7598?

There are 12 known substitutes for 4820-01-009-7598: 3431-00-018-8339, 5315-00-039-5424, 5133-00-228-1352 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-103?

Key specifications for 20-103: Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END; Thread Series Designator: NPT SECOND END; Valve Operation Method: AUTOMATIC; Connection Type: THREADED INTERNAL PIPE FIRST END. 17 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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