PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6478N 1 1/8INValve,angle

Henry Technologies, Inc. · NSN 4820-00-277-1715 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-277-1715 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-277-1715. Primary manufacturer part number: 6478N 1 1/8IN.
Features
  • Valve,angle — FSC 4820
  • Valve Operation Method: MANUAL
  • Material: COPPER ALLOY SEAT
  • Material Document and Classification: QQ-B-626,ALLOY 37 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Material: COPPER ALLOY 377 BODY
  • Style Designator: ANGLE
  • Nominal Outside Diameter Tube Accommodated: 1.125 INCHES ALL ENDS IN
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Seat construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-277-1715, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Henry Technologies, Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 6 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
NSN4820-00-277-1715
Primary Part Number6478N 1 1/8IN
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHenry Technologies, Inc.
StatusACTIVE
Valve Operation MethodMANUAL
MaterialCOPPER ALLOY SEAT
Material Document and ClassificationQQ-B-626,ALLOY 37 FED SPEC SINGLE MATERIAL RESPONSE BODY
MaterialCOPPER ALLOY 377 BODY
Style DesignatorANGLE
Nominal Outside Diameter Tube Accommodated1.125 INCHES ALL ENDS IN
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nondefinitive Spec/std DataIII TYPE AND 1 CLASS
Bonnet Attachment MethodINTEGRAL
Maximum Operating Temp275.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flow Control DeviceDISK
Bonnet TypeINSIDE SCREW
MaterialCOPPER ALLOY STEM
Media for Which DesignedREFRIGERANT 22 SECOND RESPONSE
Connection StyleSOCKET (TUBE) ALL ENDS
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Media for Which DesignedREFRIGERANT 12 FIRST RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-058-76843B90068-105 INTERCHANGEABLE
Transformer,power Autotransforme
Lockheed Martin Corp
4820-00-136-8601 INTERCHANGEABLE
Valve,safety Relief
5330-00-171-414106478 INTERCHANGEABLE
Gasket
Hayes Wheels Intl Inc Akron Opns
4820-00-287-4604 INTERCHANGEABLE
Valve,angle
5305-00-809-30439H1P1-4-12C INTERCHANGEABLE
Screw,tapping
Raytheon Company Div Corp
5960-00-821-6693 INTERCHANGEABLE
Electron Tube
5310-01-148-19154004000 INTERCHANGEABLE
Washer,split
Alfa Laval Inc
4820-01-201-8880 INTERCHANGEABLE
Valve,globe
5330-01-252-29699008086 INTERCHANGEABLE
Retainer,packing
Ships Machinery International, Inc.
5855-01-373-75386478 INTERCHANGEABLE
Cell,optical Element
Oriel Corp
Cross-Reference Index
Part NumberManufacturer
6478N 1 1/8IN Henry Technologies, Inc. (USA)
6478N Henry Technologies, Inc. (USA)
MILV20064 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
R33739PC68 Frick Co (USA)
SK5058-N Henry Technologies, Inc. (USA)
4820PL0991540 Jednolity Indeks Materialowy - Uniform Material Index (POL)
6478 Henry Technologies, Inc. (USA)
MIL-DTL-20064 TY3CL1 1-1/8IN Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-20064 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SK5058-N 6478N Henry Technologies, Inc. (USA)
022-00160 Johnson Controls Navy Systems, Llc (USA)
0ME126-25APC21F23FT039F Carrier Corp (USA)
Related Parts
5950-00-058-7684INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
3B90068-105
4820-00-136-8601INTERCHANGEABLE
VALVE,SAFETY RELIEF
5330-00-171-4141INTERCHANGEABLE
GASKET
06478
4820-00-287-4604INTERCHANGEABLE
VALVE,ANGLE
5305-00-809-3043INTERCHANGEABLE
SCREW,TAPPING
9H1P1-4-12C
5960-00-821-6693INTERCHANGEABLE
ELECTRON TUBE
5310-01-148-1915INTERCHANGEABLE
WASHER,SPLIT
4004000
4820-01-201-8880INTERCHANGEABLE
VALVE,GLOBE
5330-01-252-2969INTERCHANGEABLE
RETAINER,PACKING
9008086
5855-01-373-7538INTERCHANGEABLE
CELL,OPTICAL ELEMENT
6478

Frequently Asked Questions

What is NSN 4820-00-277-1715?

NSN 4820-00-277-1715 is a Valve,angle, manufactured by Henry Technologies, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-277-1715?

NSN 4820-00-277-1715 has 12 cross-referenced part numbers: 6478N 1 1/8IN (Henry Technologies, Inc.), 6478N (Henry Technologies, Inc.), MILV20064 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), R33739PC68 (Frick Co), SK5058-N (Henry Technologies, Inc.) and 7 more.

What NSN replaces 4820-00-277-1715?

There are 10 known substitutes for 4820-00-277-1715: 5950-00-058-7684, 4820-00-136-8601, 5330-00-171-4141 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6478N 1 1/8IN?

Key specifications for 6478N 1 1/8IN: Valve Operation Method: MANUAL; Material: COPPER ALLOY SEAT; Material Document and Classification: QQ-B-626,ALLOY 37 FED SPEC SINGLE MATERIAL RESPONSE BODY; Material: COPPER ALLOY 377 BODY. 17 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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