PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-4384536-21A AFValve,globe

Naval Ship Systems Command · NSN 4820-00-497-1684 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-497-1684 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-497-1684. Primary manufacturer part number: 803-4384536-21A AF.
Features
  • Valve,globe — FSC 4820
  • Maximum Operating Temp: 425.0 FAHRENHEIT SINGLE RESPONSE425.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Features Provided: BONNET PACKINGBONNET PACKING
  • Connection Style: PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Material: NICKEL ALLOY FLOW CONTROL DEVICENICKEL ALLOY SEAT
  • Thread Direction: RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
  • Style Designator: STRAIGHT THRU
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Flow Control Devicenickel Alloy Seat construction
General Description

The Valve,globe, cataloged under National Stock Number 4820-00-497-1684, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 7 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
NSN4820-00-497-1684
Primary Part Number803-4384536-21A AF
Item NameValve,globe
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusCANCELLED
Maximum Operating Temp425.0 FAHRENHEIT SINGLE RESPONSE425.0 FAHRENHEIT SINGLE RESPONSE DEGF
Features ProvidedBONNET PACKINGBONNET PACKING
Connection StylePLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS
Thread Series DesignatorNPT ALL ENDS
MaterialNICKEL ALLOY FLOW CONTROL DEVICENICKEL ALLOY SEAT
Thread DirectionRIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
Style DesignatorSTRAIGHT THRU
MaterialRUBBER PACKINGNICKEL ALLOY STEM
Flow Control DeviceDISKDISK
Nominal Thread Size0.375 INCHES ALL ENDS0.375 INCHES ALL ENDS IN
Renewable Seat Ring TypeTHREADEDTHREADED
Connection TypeTHREADED EXTERNAL PIPE ALL ENDSTHREADED EXTERNAL PIPE ALL ENDS
MaterialRUBBER PACKING
Bonnet Attachment MethodTHREADEDTHREADED
Test Data Document03950-882057049 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Valve Operation MethodMANUALMANUAL
Media for Which DesignedSTEAM SINGLE RESPONSE
Bonnet TypeINSIDE SCREWINSIDE SCREW
MaterialNICKEL ALLOY SEATCOPPER ALLOY 922 BODY
MaterialNICKEL ALLOY STEMNICKEL ALLOY FLOW CONTROL DEVICE
Operating Pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5815-00-027-4496182314 INTERCHANGEABLE
Bar,pull,teletypewriter
Telemechanics Inc
5996-00-053-49031823 INTERCHANGEABLE
Amplifier,radio Frequency
Hickok Waekon Llc
5310-00-059-5884BACN10JD103 INTERCHANGEABLE
Nut,plain,castellated,hexagon
The Boeing Company Div Defense
6810-00-074-4251 INTERCHANGEABLE
Lead Subacetate
5950-00-080-468218338 INTERCHANGEABLE
Coil,radio Frequency
Albert Frei & Sons, Inc. Dba Afs
4730-00-223-6411100-854 INTERCHANGEABLE
Fitting,lubrication
Graco Inc.
5975-00-240-2703 INTERCHANGEABLE
Coupling,electrical Conduit
2540-00-451-9502 INTERCHANGEABLE
Pedal,control
4720-00-518-6757F3700 INTERCHANGEABLE
Hose Assembly,nonmetallic
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
6240-00-617-01871823 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
Cross-Reference Index
Part NumberManufacturer
245PWS 3/8IN The Walworth Company (USA)
1823 1-4 Senior Operations Llc Div Senior Aerospace Ketema (USA)
1823 William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
803-4384536-21A Naval Sea Systems Command (USA)
803-4384536 Naval Ship Systems Command (USA)
803-4384536-21A AF PRIMARY Naval Ship Systems Command (USA)
1823CP Naval Inventory Control Point Mechanicsburg (USA)
803-4384536-21A Naval Ship Systems Command (USA)
138WS3-8IN The Walworth Company (USA)
1823-3-8 William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
4820PL1342346 Jednolity Indeks Materialowy - Uniform Material Index (POL)
803-4384536-21A2AF Naval Ship Systems Command (USA)
803-4384536-21AXAF Naval Ship Systems Command (USA)
810-43B453GREVISION E Naval Ship Systems Command (USA)
Related Parts
5815-00-027-4496INTERCHANGEABLE
BAR,PULL,TELETYPEWRITER
182314
5996-00-053-4903INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
1823
5310-00-059-5884INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
BACN10JD103
6810-00-074-4251INTERCHANGEABLE
LEAD SUBACETATE
5950-00-080-4682INTERCHANGEABLE
COIL,RADIO FREQUENCY
18338
4730-00-223-6411INTERCHANGEABLE
FITTING,LUBRICATION
100-854
5975-00-240-2703INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
2540-00-451-9502INTERCHANGEABLE
PEDAL,CONTROL
4720-00-518-6757INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
F3700
6240-00-617-0187INTERCHANGEABLE
LAMP,INCANDESCENT
1823
5355-00-780-8132INTERCHANGEABLE
WINDOW,DIAL
192-2010-010
6680-00-824-6074INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
1823

Frequently Asked Questions

What is NSN 4820-00-497-1684?

NSN 4820-00-497-1684 is a Valve,globe, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-497-1684?

NSN 4820-00-497-1684 has 14 cross-referenced part numbers: 245PWS 3/8IN (The Walworth Company), 1823 1-4 (Senior Operations Llc Div Senior Aerospace Ketema), 1823 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 803-4384536-21A (Naval Sea Systems Command), 803-4384536 (Naval Ship Systems Command) and 9 more.

What NSN replaces 4820-00-497-1684?

There are 12 known substitutes for 4820-00-497-1684: 5815-00-027-4496, 5996-00-053-4903, 5310-00-059-5884 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-4384536-21A AF?

Key specifications for 803-4384536-21A AF: Maximum Operating Temp: 425.0 FAHRENHEIT SINGLE RESPONSE425.0 FAHRENHEIT SINGLE RESPONSE DEGF; Features Provided: BONNET PACKINGBONNET PACKING; Connection Style: PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS; Thread Series Designator: NPT ALL ENDS. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-497-1684 still in active supply?

NSN 4820-00-497-1684 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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