PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILV20064Valve,angle

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-00-287-2578 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-287-2578 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-287-2578. Primary manufacturer part number: MILV20064.
Features
  • Valve,angle — FSC 4820
  • Material: COPPER ALLOY BODY
  • Valve Operation Method: MANUAL
  • Nominal Outside Diameter Tube Accommodated: 0.875 INCHES ALL ENDS IN
  • Material: STEEL CORROSION RESISTING SEAT
  • Bonnet Type: INSIDE SCREW
  • Material Document and Classification: MIL-N-894-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE STEM
  • Media for Which Designed: REFRIGERANT 22 SECOND RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-287-2578, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-287-2578
Primary Part NumberMILV20064
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialCOPPER ALLOY BODY
Valve Operation MethodMANUAL
Nominal Outside Diameter Tube Accommodated0.875 INCHES ALL ENDS IN
MaterialSTEEL CORROSION RESISTING SEAT
Bonnet TypeINSIDE SCREW
Material Document and ClassificationMIL-N-894-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE STEM
Media for Which DesignedREFRIGERANT 22 SECOND RESPONSE
MaterialNICKEL ALLOY 400 STEM
Style DesignatorANGLE
Bonnet Attachment MethodTHREADED
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Flow Control DeviceDISK
Nondefinitive Spec/std Data3 TYPE AND 6 CLASS
Renewable Seat Ring TypeTHREADED
Connection StyleSOCKET (TUBE) ALL ENDS
Material Document and ClassificationB145,ALLOY 4B ASSN STD SINGLE MATERIAL RESPONSE BODY
Material Document and ClassificationMIL-N-894-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Media for Which DesignedREFRIGERANT 12 FIRST RESPONSE
MaterialNICKEL ALLOY 400 FLOW CONTROL DEVICE
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5935-00-081-274711067454 INTERCHANGEABLE
Connector,plug,electrical
Us Army Aviation and Missile Command
3110-00-117-0756T88 INTERCHANGEABLE
Bearing,roller,thrust
The Timken Corporation
2520-00-371-32026497 INTERCHANGEABLE
Disk,clutch,vehicular
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5305-00-997-72106130-SS-0440-7 INTERCHANGEABLE
Screw,externally Relieved Body
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5940-01-090-6361649-7 INTERCHANGEABLE
Terminal Board
Martinez and Turek, Inc. Dba Martinez & Turek Inc
6530-01-120-62126497 INTERCHANGEABLE
Seat Raiser,water Closet,handica
Lumex Inc
5365-01-172-2022 INTERCHANGEABLE
Spacer,ring
5930-01-178-67896497 INTERCHANGEABLE
Switch,toggle
G.s. Blodgett, Llc Div Blodgett
6120-01-571-29496497 INTERCHANGEABLE
Transformer,power
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
6515-01-632-41676497 INTERCHANGEABLE
Plug,ear
Moldex-Metric, Inc. Dba Moldex Metric Inc
Cross-Reference Index
Part NumberManufacturer
MILV20064 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6497N Henry Technologies, Inc. (USA)
MIL-DTL-20064 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6477-S Henry Technologies, Inc. (USA)
6497 Henry Technologies, Inc. (USA)
Related Parts
5935-00-081-2747INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
11067454
3110-00-117-0756INTERCHANGEABLE
BEARING,ROLLER,THRUST
T88
2520-00-371-3202INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
6497
5305-00-997-7210INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY
6130-SS-0440-7
5940-01-090-6361INTERCHANGEABLE
TERMINAL BOARD
649-7
6530-01-120-6212INTERCHANGEABLE
SEAT RAISER,WATER CLOSET,HANDICA
6497
5365-01-172-2022INTERCHANGEABLE
SPACER,RING
5930-01-178-6789INTERCHANGEABLE
SWITCH,TOGGLE
6497
6120-01-571-2949INTERCHANGEABLE
TRANSFORMER,POWER
6497
6515-01-632-4167INTERCHANGEABLE
PLUG,EAR
6497

Frequently Asked Questions

What is NSN 4820-00-287-2578?

NSN 4820-00-287-2578 is a Valve,angle, 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: active.

What are the part numbers for NSN 4820-00-287-2578?

NSN 4820-00-287-2578 has 5 cross-referenced part numbers: MILV20064 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6497N (Henry Technologies, Inc.), MIL-DTL-20064 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6477-S (Henry Technologies, Inc.), 6497 (Henry Technologies, Inc.).

What NSN replaces 4820-00-287-2578?

There are 10 known substitutes for 4820-00-287-2578: 5935-00-081-2747, 3110-00-117-0756, 2520-00-371-3202 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILV20064?

Key specifications for MILV20064: Material: COPPER ALLOY BODY; Valve Operation Method: MANUAL; Nominal Outside Diameter Tube Accommodated: 0.875 INCHES ALL ENDS IN; Material: STEEL CORROSION RESISTING SEAT. 20 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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