PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-V-25023Cock,poppet Drain

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-00-202-6014 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-202-6014 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-202-6014. Primary manufacturer part number: MIL-V-25023.
Features
  • Cock,poppet Drain — FSC 4820
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Material: STEEL OVERALL
  • Thread Series Designator: UNF ALL ENDS
  • Nominal Thread Size: 0.437 INCHES ALL ENDS IN
  • Connection Type: THREADED EXTERNAL TUBE ALL ENDS
  • Valve Operation Method: AUTOMATIC
  • Thread Class: 3A ALL ENDS A
Applications
  • Applications requiring Steel Overall construction
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-00-202-6014, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-202-6014
Primary Part NumberMIL-V-25023
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Thread DirectionRIGHT-HAND ALL ENDS
MaterialSTEEL OVERALL
Thread Series DesignatorUNF ALL ENDS
Nominal Thread Size0.437 INCHES ALL ENDS IN
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Valve Operation MethodAUTOMATIC
Thread Class3A ALL ENDS A
Nominal Thread Size0.437 INCHES ALL ENDS IN
Connection StylePLAIN (TUBE) ALL ENDS
Thread Series DesignatorUNF ALL ENDS
MaterialSTEEL OVERALL
Style DesignatorSTRAIGHT THRU
Style DesignatorSTRAIGHT THRU
Flow Control DevicePOPPET
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-097-0325 INTERCHANGEABLE
Cock,poppet Drain
4820-00-202-6250 INTERCHANGEABLE
Cock,plug
4820-00-203-6321 INTERCHANGEABLE
Cock,poppet Drain
4820-00-289-3939 INTERCHANGEABLE
Cock,poppet Drain
4130-00-470-8566A4524-7402-2 INTERCHANGEABLE
Compressor Unit,refrigeration
Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters
4820-00-540-103772D-8 INTERCHANGEABLE
Valve Fuel Drain
Auto-Valve, Inc
4820-00-988-3682 INTERCHANGEABLE
Valve,globe
4820-01-114-6672 INTERCHANGEABLE
Cock,poppet Drain
4820-01-397-1755 INTERCHANGEABLE
Cock,poppet Drain
5920-01-411-1111835-011 INTERCHANGEABLE
Absorber,overvoltage
Euclid Equipment Inc
Cross-Reference Index
Part NumberManufacturer
MIL-V-25023 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
71D-4 Auto-Valve, Inc (USA)
83501-1 Mag Aerospace Industries Inc.,dba Monogramsystems Dba Monogram Systems (USA)
575B-4AS Auto-Valve, Inc (USA)
83501-1 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
10177042 Nimikkeistokeskus Ncb Finland (FIN)
49F9798-52 Department of the Air Force (USA)
MS29528-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
D100B Allen Aircraft Products Inc (USA)
Related Parts
4820-00-097-0325INTERCHANGEABLE
COCK,POPPET DRAIN
4820-00-202-6250INTERCHANGEABLE
COCK,PLUG
4820-00-203-6321INTERCHANGEABLE
COCK,POPPET DRAIN
4820-00-289-3939INTERCHANGEABLE
COCK,POPPET DRAIN
4130-00-470-8566INTERCHANGEABLE
COMPRESSOR UNIT,REFRIGERATION
A4524-7402-2
4820-00-540-1037INTERCHANGEABLE
VALVE FUEL DRAIN
72D-8
4820-00-988-3682INTERCHANGEABLE
VALVE,GLOBE
4820-01-114-6672INTERCHANGEABLE
COCK,POPPET DRAIN
4820-01-397-1755INTERCHANGEABLE
COCK,POPPET DRAIN
5920-01-411-1111INTERCHANGEABLE
ABSORBER,OVERVOLTAGE
835-011
4820-01-475-9783INTERCHANGEABLE
COCK,POPPET DRAIN
5365-01-620-2118INTERCHANGEABLE
RING,GROOVELESS,RE
835011

Frequently Asked Questions

What is NSN 4820-00-202-6014?

NSN 4820-00-202-6014 is a Cock,poppet Drain, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-202-6014?

NSN 4820-00-202-6014 has 9 cross-referenced part numbers: MIL-V-25023 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 71D-4 (Auto-Valve, Inc), 83501-1 (Mag Aerospace Industries Inc.,dba Monogramsystems Dba Monogram Systems), 575B-4AS (Auto-Valve, Inc), 83501-1 (Parker Hannifin Corporation Div Aerospace Group Headquarters) and 4 more.

What NSN replaces 4820-00-202-6014?

There are 12 known substitutes for 4820-00-202-6014: 4820-00-097-0325, 4820-00-202-6250, 4820-00-203-6321 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-V-25023?

Key specifications for MIL-V-25023: Thread Direction: RIGHT-HAND ALL ENDS; Material: STEEL OVERALL; Thread Series Designator: UNF ALL ENDS; Nominal Thread Size: 0.437 INCHES ALL ENDS IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-202-6014 still in active supply?

NSN 4820-00-202-6014 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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