PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50409-1Valve,ball

Mission Systems Davenport Inc. · NSN 4820-01-165-3561 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-165-3561 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-165-3561. Primary manufacturer part number: 50409-1.
Features
  • Valve,ball — FSC 4820
  • Style Designator: STRAIGHT THRUSTRAIGHT THRU
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSEFUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Valve Operation Method: MANUALMANUAL
  • Material Document and Classification: QQ-A-200/8 FED SPEC 2ND MATERIAL RESPONSE BODY LININGQQ-A-200/8 FED SPEC 2ND MATERIAL RESPONSE BODY LINING
  • Material: ALUMINUM ALLOY 6061 BODY LINING
  • Surface Treatment Document and Classification: -1L-A-8625,TYPEII MIL SPEC 1ST TREATMENT RESPONSE AND -1L-A-8625,TYPEII MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-L-81352 MIL SPEC 3RD TREATMENT RESPONSEMIL-L-81352 MIL SPEC 3RD TREATMENT RESPONSE
  • Material Document and Classification: AMS3651 ASSN STD 3RD MATERIAL RESPONSE SEATAMS3651 ASSN STD 3RD MATERIAL RESPONSE SEAT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy 6061 Body Lining construction
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-165-3561, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mission Systems Davenport Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-165-3561
Primary Part Number50409-1
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMission Systems Davenport Inc.
StatusACTIVE
Style DesignatorSTRAIGHT THRUSTRAIGHT THRU
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSEFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Valve Operation MethodMANUALMANUAL
Material Document and ClassificationQQ-A-200/8 FED SPEC 2ND MATERIAL RESPONSE BODY LININGQQ-A-200/8 FED SPEC 2ND MATERIAL RESPONSE BODY LINING
MaterialALUMINUM ALLOY 6061 BODY LINING
Surface Treatment Document and Classification-1L-A-8625,TYPEII MIL SPEC 1ST TREATMENT RESPONSE AND -1L-A-8625,TYPEII MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-L-81352 MIL SPEC 3RD TREATMENT RESPONSEMIL-L-81352 MIL SPEC 3RD TREATMENT RESPONSE
Material Document and ClassificationAMS3651 ASSN STD 3RD MATERIAL RESPONSE SEATAMS3651 ASSN STD 3RD MATERIAL RESPONSE SEAT
MaterialALUMINUM ALLOY 6061 AND ALUMINUM ALLOY 356.0 BODY
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAT
MaterialRUBBER FLUOROSILICONE CLASS FQ PACKING
Surface TreatmentANODIZE AND ANODIZE AND PRIMER AND PRIMER AND LACQUERLACQUER
Material Document and Classification-25988/1 MIL STD 4TH MATERIAL RESPONSE PACKING-25988/1 MIL STD 4TH MATERIAL RESPONSE PACKING
Material Document and ClassificationQQ-A-225/8 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/8 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-596 FED SPEC 1ST MATERIAL RESPONSE BODYQQ-A-596 FED SPEC 1ST MATERIAL RESPONSE BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5315-00-271-3803610783 INTERCHANGEABLE
Pin,straight,headless
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-853-44446306-2ZJEM INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5895-00-955-2447504091 INTERCHANGEABLE
Circuit Board Assem
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5340-01-255-3147504091 INTERCHANGEABLE
Handle,bow
Aimtron Systems, Llc
6750-01-415-7968181-400 INTERCHANGEABLE
Cleaner,photo
Molecular Gps Enterprises Dba Clayton Chemical
3110-01-466-1197181-400 INTERCHANGEABLE
Bearing,ball,annular
Rix Industries
4820-01-509-16001814-00 INTERCHANGEABLE
Liner,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
50409-1 PRIMARY Mission Systems Davenport Inc. (USA)
18-1400 Aerocontrolex Group, Inc. Dba Aero Fluid Products (USA)
18-1400-01 Aerocontrolex Group, Inc. Dba Aero Fluid Products (USA)
61078-3 Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems (USA)
18-1400-1 Aerocontrolex Group, Inc. Dba Aero Fluid Products (USA)
11-1001-04-1 Essex Industries, Inc. (USA)
2820123-102 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
Related Parts
5315-00-271-3803INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
610783
3110-00-853-4444INTERCHANGEABLE
BEARING,BALL,ANNULAR
6306-2ZJEM
5895-00-955-2447INTERCHANGEABLE
CIRCUIT BOARD ASSEM
504091
5340-01-255-3147INTERCHANGEABLE
HANDLE,BOW
504091
6750-01-415-7968INTERCHANGEABLE
CLEANER,PHOTO
181-400
3110-01-466-1197INTERCHANGEABLE
BEARING,BALL,ANNULAR
181-400
4820-01-509-1600INTERCHANGEABLE
LINER,VALVE
1814-00

Frequently Asked Questions

What is NSN 4820-01-165-3561?

NSN 4820-01-165-3561 is a Valve,ball, manufactured by Mission Systems Davenport Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-165-3561?

NSN 4820-01-165-3561 has 7 cross-referenced part numbers: 50409-1 (Mission Systems Davenport Inc.), 18-1400 (Aerocontrolex Group, Inc. Dba Aero Fluid Products), 18-1400-01 (Aerocontrolex Group, Inc. Dba Aero Fluid Products), 61078-3 (Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems), 18-1400-1 (Aerocontrolex Group, Inc. Dba Aero Fluid Products) and 2 more.

What NSN replaces 4820-01-165-3561?

There are 7 known substitutes for 4820-01-165-3561: 5315-00-271-3803, 3110-00-853-4444, 5895-00-955-2447 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50409-1?

Key specifications for 50409-1: Style Designator: STRAIGHT THRUSTRAIGHT THRU; End Item Identification: ACFT,TYPE F16A-DACFT,TYPE F16A-D; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSEFUEL/OIL, HYDROCARBON SINGLE RESPONSE; Valve Operation Method: MANUALMANUAL. 15 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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