PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-V-25023Cock,plug

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-00-202-6250 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-202-6250 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-202-6250. Primary manufacturer part number: MIL-V-25023.
Features
  • Cock,plug — FSC 4820
  • Thread Quantity Per Inch: 20 FIRST END
  • Seat Angle: 37.0 DEGREES FIRST END
  • Flow Style: TWO WAY TWO PORT 90 DEGREE PLUG TURN
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Connection Style: FLARED (TUBE) FIRST END
  • Nominal Thread Size: 0.437 INCHES FIRST END IN
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Cock,plug, cataloged under National Stock Number 4820-00-202-6250, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 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
NSN4820-00-202-6250
Primary Part NumberMIL-V-25023
Item NameCock,plug
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 Quantity Per Inch20 FIRST END
Seat Angle37.0 DEGREES FIRST END
Flow StyleTWO WAY TWO PORT 90 DEGREE PLUG TURN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread DirectionRIGHT-HAND FIRST END
Connection StyleFLARED (TUBE) FIRST END
Nominal Thread Size0.437 INCHES FIRST END IN
Valve Operation MethodMANUAL
Thread Class3A FIRST END A
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Thread Series DesignatorUNF FIRST END
Thread Quantity Per Inch20 FIRST END
Seat Angle37.0 DEGREES FIRST END
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.437 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-097-0325 INTERCHANGEABLE
Cock,poppet Drain
1650-00-129-91338151-1 INTERCHANGEABLE
Sleeve
Goodrich Aerospace Canada Ltd
4820-00-202-6014 INTERCHANGEABLE
Cock,poppet Drain
4820-00-203-6321 INTERCHANGEABLE
Cock,poppet Drain
4820-00-289-3939 INTERCHANGEABLE
Cock,poppet Drain
4820-00-540-103772D-8 INTERCHANGEABLE
Valve Fuel Drain
Auto-Valve, Inc
5975-00-633-72656337265 INTERCHANGEABLE
Conduit
U S Army Tank Automotive Command Amsta-Im-Mm
4920-00-870-52178-15-1-1 INTERCHANGEABLE
Accessory Kit,test Set
Celtech Corporation Div Use CAGE 65552 for All Orders
4820-00-988-3682 INTERCHANGEABLE
Valve,globe
4820-01-114-6672 INTERCHANGEABLE
Cock,poppet Drain
Cross-Reference Index
Part NumberManufacturer
MIL-V-25023 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
8151-4AF Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
8151-1 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
633726-5 Lockheed Martin Corp (USA)
3-54802-4 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
31801-1 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
72D-4 Auto-Valve, Inc (USA)
35331 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
775C61NW Auto-Valve, Inc (USA)
MS29530-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4820-00-097-0325INTERCHANGEABLE
COCK,POPPET DRAIN
1650-00-129-9133INTERCHANGEABLE
SLEEVE
8151-1
4820-00-202-6014INTERCHANGEABLE
COCK,POPPET DRAIN
4820-00-203-6321INTERCHANGEABLE
COCK,POPPET DRAIN
4820-00-289-3939INTERCHANGEABLE
COCK,POPPET DRAIN
4820-00-540-1037INTERCHANGEABLE
VALVE FUEL DRAIN
72D-8
5975-00-633-7265INTERCHANGEABLE
CONDUIT
6337265
4920-00-870-5217INTERCHANGEABLE
ACCESSORY KIT,TEST SET
8-15-1-1
4820-00-988-3682INTERCHANGEABLE
VALVE,GLOBE
4820-01-114-6672INTERCHANGEABLE
COCK,POPPET DRAIN
5950-01-143-5995INTERCHANGEABLE
TRANSFORMER,POWER
81511
2540-01-184-4801INTERCHANGEABLE
TRACK,SEAT ADJUSTER
81511

Frequently Asked Questions

What is NSN 4820-00-202-6250?

NSN 4820-00-202-6250 is a Cock,plug, 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 4820-00-202-6250?

NSN 4820-00-202-6250 has 10 cross-referenced part numbers: MIL-V-25023 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 8151-4AF (Parker Hannifin Corporation Div Aerospace Group Headquarters), 8151-1 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 633726-5 (Lockheed Martin Corp), 3-54802-4 (Parker Hannifin Corporation Div Aerospace Group Headquarters) and 5 more.

What NSN replaces 4820-00-202-6250?

There are 12 known substitutes for 4820-00-202-6250: 4820-00-097-0325, 1650-00-129-9133, 4820-00-202-6014 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 Quantity Per Inch: 20 FIRST END; Seat Angle: 37.0 DEGREES FIRST END; Flow Style: TWO WAY TWO PORT 90 DEGREE PLUG TURN; Connection Type: THREADED EXTERNAL TUBE FIRST END. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-202-6250 still in active supply?

NSN 4820-00-202-6250 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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