PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

49F9798-62Cock,poppet Drain

Department of the Air Force · NSN 4820-00-097-0325 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-097-0325 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-097-0325. Primary manufacturer part number: 49F9798-62.
Features
  • Cock,poppet Drain — FSC 4820
  • Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Seat Angle: 37.0 DEGREES ALL ENDS
  • Operating Pressure: 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Flow Control Device: PLUG
  • Connection Style: FLARED (TUBE) ALL ENDS
  • Valve Operation Method: MANUAL
Applications
  • Applications requiring Steel Corrosion Resisting Flow Control Device construction
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-00-097-0325, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Department of the Air Force. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 13 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
NSN4820-00-097-0325
Primary Part Number49F9798-62
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDepartment of the Air Force
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Seat Angle37.0 DEGREES ALL ENDS
Operating Pressure60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Flow Control DevicePLUG
Connection StyleFLARED (TUBE) ALL ENDS
Valve Operation MethodMANUAL
Thread Quantity Per Inch18 ALL ENDS
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY BODY LINING
Specification/standard Data96906-MS29530 GOVERNMENT STANDARD
Thread Class3A ALL ENDS A
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorUNF ALL ENDS
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Nominal Thread Size0.562 INCHES ALL ENDS IN
Thread DirectionRIGHT-HAND ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-155-63006313NR INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
4820-00-202-6014 INTERCHANGEABLE
Cock,poppet Drain
4820-00-202-6250 INTERCHANGEABLE
Cock,plug
4820-00-203-6321 INTERCHANGEABLE
Cock,poppet Drain
5340-00-215-7358202990 INTERCHANGEABLE
Clip,retaining
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4820-00-289-3939 INTERCHANGEABLE
Cock,poppet Drain
3120-00-426-0523 INTERCHANGEABLE
Bearing,sleeve
4820-00-540-103772D-8 INTERCHANGEABLE
Valve Fuel Drain
Auto-Valve, Inc
5330-00-610-4293315048 INTERCHANGEABLE
Packing,preformed
Eaton Aerospace, Llc Dba Jackson South
4820-00-988-3682 INTERCHANGEABLE
Valve,globe
Cross-Reference Index
Part NumberManufacturer
49F9798-62 Department of the Air Force (USA)
775C-62NW Auto-Valve, Inc (USA)
8151-6AF Rolls-Royce Plc Div Defense (europe) (GBR)
475C62WP Auto-Valve, Inc (USA)
815-2-62 General Electric Company (USA)
8151-2162 Lockheed Martin Corporation Div Rms (USA)
31801-2 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
8151-2162 General Electric Company (USA)
65F63650 Northrop Grumman Systems Corporation (USA)
475C62W Auto-Valve, Inc (USA)
8151-6AF Rolls-Royce Airlines (GBR)
475C62CW Auto-Valve, Inc (USA)
4820PL0797777 Jednolity Indeks Materialowy - Uniform Material Index (POL)
3-54802-6 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
8151-6AF Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
MIL-V-25023 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS29530-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
49F9798-62 Joint Aircraft Committee (USA)
475C62 Auto-Valve, Inc (USA)
815-2-62 Lockheed Martin Corporation Div Rms (USA)
Related Parts
3110-00-155-6300INTERCHANGEABLE
BEARING,BALL,ANNULAR
6313NR
4820-00-202-6014INTERCHANGEABLE
COCK,POPPET DRAIN
4820-00-202-6250INTERCHANGEABLE
COCK,PLUG
4820-00-203-6321INTERCHANGEABLE
COCK,POPPET DRAIN
5340-00-215-7358INTERCHANGEABLE
CLIP,RETAINING
202990
4820-00-289-3939INTERCHANGEABLE
COCK,POPPET DRAIN
3120-00-426-0523INTERCHANGEABLE
BEARING,SLEEVE
4820-00-540-1037INTERCHANGEABLE
VALVE FUEL DRAIN
72D-8
5330-00-610-4293INTERCHANGEABLE
PACKING,PREFORMED
315048
4820-00-988-3682INTERCHANGEABLE
VALVE,GLOBE
2815-01-105-3059INTERCHANGEABLE
PISTON ASSEMBLY
81512
4820-01-114-6672INTERCHANGEABLE
COCK,POPPET DRAIN

Frequently Asked Questions

What is NSN 4820-00-097-0325?

NSN 4820-00-097-0325 is a Cock,poppet Drain, manufactured by Department of the Air Force, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-097-0325?

NSN 4820-00-097-0325 has 27 cross-referenced part numbers: 49F9798-62 (Department of the Air Force), 775C-62NW (Auto-Valve, Inc), 8151-6AF (Rolls-Royce Plc Div Defense (europe)), 475C62WP (Auto-Valve, Inc), 815-2-62 (General Electric Company) and 22 more.

What NSN replaces 4820-00-097-0325?

There are 12 known substitutes for 4820-00-097-0325: 3110-00-155-6300, 4820-00-202-6014, 4820-00-202-6250 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 49F9798-62?

Key specifications for 49F9798-62: Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Seat Angle: 37.0 DEGREES ALL ENDS; Operating Pressure: 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-097-0325 still in active supply?

NSN 4820-00-097-0325 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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