PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A369Cock,poppet Drain

Volcanic Heater Inc Dba Volcanic Heater, Inc. · NSN 4820-00-081-9371 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-081-9371 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-081-9371. Primary manufacturer part number: A369.
Features
  • Cock,poppet Drain — FSC 4820
  • Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END
  • Thread Series Designator: NPT ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Material: COPPER ALLOY OVERALL
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • Operating Pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Valve Operation Method: MANUAL
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-00-081-9371, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Volcanic Heater Inc Dba Volcanic Heater, Inc.. Government technical data includes 10 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-081-9371
Primary Part NumberA369
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVolcanic Heater Inc Dba Volcanic Heater, Inc.
StatusACTIVE
Connection StylePLAIN, OPTIONAL END (PIPE) FIRST END
Thread Series DesignatorNPT ALL ENDS
Style DesignatorSTRAIGHT THRU
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.250 INCHES ALL ENDS IN
Operating Pressure50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation MethodMANUAL
Flow Control DevicePLUG
Media for Which DesignedSTEAM SINGLE RESPONSE
Thread DirectionRIGHT-HAND ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5821-00-173-7949A369 INTERCHANGEABLE
Switch Unit,control
Lockheed Martin Corp
5977-00-214-1275A-367 INTERCHANGEABLE
Brush,electrical Contact
Aerocontrolex Group, Inc. Div Talley Actuators
3040-00-588-4537 INTERCHANGEABLE
Bell Crank
5340-01-561-4708A-369 INTERCHANGEABLE
Bracket,mounting
Dwyer Instruments Inc
Cross-Reference Index
Part NumberManufacturer
A369 PRIMARY Volcanic Heater Inc Dba Volcanic Heater, Inc. (USA)
Related Parts
5821-00-173-7949INTERCHANGEABLE
SWITCH UNIT,CONTROL
A369
5977-00-214-1275INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
A-367
3040-00-588-4537INTERCHANGEABLE
BELL CRANK
5340-01-561-4708INTERCHANGEABLE
BRACKET,MOUNTING
A-369

Frequently Asked Questions

What is NSN 4820-00-081-9371?

NSN 4820-00-081-9371 is a Cock,poppet Drain, manufactured by Volcanic Heater Inc Dba Volcanic Heater, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-081-9371?

NSN 4820-00-081-9371 has 1 cross-referenced part number: A369 (Volcanic Heater Inc Dba Volcanic Heater, Inc.).

What NSN replaces 4820-00-081-9371?

There are 4 known substitutes for 4820-00-081-9371: 5821-00-173-7949, 5977-00-214-1275, 3040-00-588-4537 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A369?

Key specifications for A369: Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END; Thread Series Designator: NPT ALL ENDS; Style Designator: STRAIGHT THRU; Material: COPPER ALLOY OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com