PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

617A4S4Valve,angle

Superior Valve Co · NSN 4820-00-501-7089 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-501-7089 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-501-7089. Primary manufacturer part number: 617A4S4.
Features
  • Valve,angle — FSC 4820
  • Thread Class: 2A FIRST END A
  • Style Designator: ANGLE
  • Flow Control Device: STEM OR DISK
  • Seat Angle: 45.0 DEGREES FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Media for Which Designed: REFRIGERANT, HALOGENATED SINGLE RESPONSE
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 4820-00-501-7089, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Superior Valve Co. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-501-7089
Primary Part Number617A4S4
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSuperior Valve Co
StatusACTIVE
Thread Class2A FIRST END A
Style DesignatorANGLE
Flow Control DeviceSTEM OR DISK
Seat Angle45.0 DEGREES FIRST END
Thread DirectionRIGHT-HAND FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Media for Which DesignedREFRIGERANT, HALOGENATED SINGLE RESPONSE
Connection StyleFLARED (TUBE) FIRST END
MaterialCOPPER ALLOY SEAT
Connection TypeUNTHREADED INTERNAL TUBE SECOND END
Connection StyleSOCKET (TUBE) SECOND END
MaterialCOPPER ALLOY BODY
Features ProvidedVALVE STEM LOCK SHIELD
Furnished Items and Quantity1 CAP AND 1 CHAIN
Bonnet Attachment MethodINTEGRAL
Valve Operation MethodMANUAL
Thread Series DesignatorUNF FIRST END
Bonnet TypeINSIDE SCREW
Nominal Thread Size0.438 INCHES FIRST END IN
MaterialSTEEL STEM
Nominal Outside Diameter Tube Accommodated0.250 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5840-00-257-37570A276GPN INTERCHANGEABLE
Radar Set Group
Joint Electronics Type Designation System
3455-00-476-0840TABLE 48.D3/8IN INTERCHANGEABLE
Cutter,milling,end
The American Society of Mechanical Engineers
5330-01-510-969355178 INTERCHANGEABLE
Packing Assembly
Flowserve Inc
Cross-Reference Index
Part NumberManufacturer
617A4S4 PRIMARY Superior Valve Co (USA)
55178 Keco Industries, Inc. (USA)
Related Parts
5840-00-257-3757INTERCHANGEABLE
RADAR SET GROUP
0A276GPN
3455-00-476-0840INTERCHANGEABLE
CUTTER,MILLING,END
TABLE 48.D3/8IN
5330-01-510-9693INTERCHANGEABLE
PACKING ASSEMBLY
55178

Frequently Asked Questions

What is NSN 4820-00-501-7089?

NSN 4820-00-501-7089 is a Valve,angle, manufactured by Superior Valve Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-501-7089?

NSN 4820-00-501-7089 has 2 cross-referenced part numbers: 617A4S4 (Superior Valve Co), 55178 (Keco Industries, Inc.).

What NSN replaces 4820-00-501-7089?

There are 3 known substitutes for 4820-00-501-7089: 5840-00-257-3757, 3455-00-476-0840, 5330-01-510-9693. Verify interchangeability with system specifications before substitution.

What are the specifications of 617A4S4?

Key specifications for 617A4S4: Thread Class: 2A FIRST END A; Style Designator: ANGLE; Flow Control Device: STEM OR DISK; Seat Angle: 45.0 DEGREES FIRST END. 21 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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