PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-1385714-4XAFValve,gate

Naval Ship Systems Command · NSN 4820-00-497-1677 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-497-1677 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-497-1677. Primary manufacturer part number: 803-1385714-4XAF.
Features
  • Valve,gate — FSC 4820
  • Inlet Relationship with Outlet: IDENTICAL
  • Stem Type: RISING
  • Maximum Operating Temp and Media for Which Designed: 425.0 FAHRENHEIT WATER-OIL-GAS DEGF
  • Material: COPPER ALLOY 922 BODY
  • Thread Series Designator: UN
  • Operating Pressure and Type: 200.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • Nominal Thread Size: 0.750 INCHES IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 Body construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-00-497-1677, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 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
NSN4820-00-497-1677
Primary Part Number803-1385714-4XAF
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusCANCELLED
Inlet Relationship with OutletIDENTICAL
Stem TypeRISING
Maximum Operating Temp and Media for Which Designed425.0 FAHRENHEIT WATER-OIL-GAS DEGF
MaterialCOPPER ALLOY 922 BODY
Thread Series DesignatorUN
Operating Pressure and Type200.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Nominal Thread Size0.750 INCHES IN
Test Data Document03950-882047626 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.).
Thread Quantity Per Inch20
Bonnet Attachment MethodTHREADED
MaterialNICKEL ALLOY AND NICKEL ALLOY 400 DISK
Thread Class3A A
Features ProvidedBONNET PACKING
MaterialNICKEL ALLOY 400 OR NICKEL ALLOY OR NICKEL ALLOY K-500 SEAT
MaterialNICKEL ALLOY AND NICKEL ALLOY 400 STEM
Bonnet TypeINSIDE SCREW
Valve Operation MethodMANUAL
Connection TypeTHREADED EXTERNAL TUBE
Valve Size0.750 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-184-9107803-1385714-3XAF INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-7195803-1385714-52AF NON-MAG INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-9581803-1385714-3XAF NON-MAG INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-9582803-1385714-4XAF NON-MAG INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-9583803-1385714-6XAF NON MAG INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-9584803-1385714-7XAF NON-MAG INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-9585803-1385714-8XAF NON-MAG INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-432-9586 INTERCHANGEABLE
Valve,gate
4820-00-483-0675803-1385714-2XAF INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
4820-00-483-0676803-1385714-6XAF INTERCHANGEABLE
Valve,gate
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
810-1385714 Naval Sea Systems Command (USA)
1385714 Naval Ship Systems Command (USA)
1385714-4 Naval Ship Systems Command (USA)
803-1385714-42 Naval Ship Systems Command (USA)
803-1385714-4MOD FOAM Naval Ship Systems Command (USA)
803-1385714 Naval Ship Systems Command (USA)
803-1385714-4XAF PRIMARY Naval Ship Systems Command (USA)
Related Parts
4820-00-184-9107INTERCHANGEABLE
VALVE,GATE
803-1385714-3XAF
4820-00-432-7195INTERCHANGEABLE
VALVE,GATE
803-1385714-52AF NON-MAG
4820-00-432-9581INTERCHANGEABLE
VALVE,GATE
803-1385714-3XAF NON-MAG
4820-00-432-9582INTERCHANGEABLE
VALVE,GATE
803-1385714-4XAF NON-MAG
4820-00-432-9583INTERCHANGEABLE
VALVE,GATE
803-1385714-6XAF NON MAG
4820-00-432-9584INTERCHANGEABLE
VALVE,GATE
803-1385714-7XAF NON-MAG
4820-00-432-9585INTERCHANGEABLE
VALVE,GATE
803-1385714-8XAF NON-MAG
4820-00-432-9586INTERCHANGEABLE
VALVE,GATE
4820-00-483-0675INTERCHANGEABLE
VALVE,GATE
803-1385714-2XAF
4820-00-483-0676INTERCHANGEABLE
VALVE,GATE
803-1385714-6XAF
4820-00-483-0677INTERCHANGEABLE
VALVE,GATE
803-1385714-8XAF
4820-00-495-6213INTERCHANGEABLE
VALVE,GATE
803-1385714-1XAF

Frequently Asked Questions

What is NSN 4820-00-497-1677?

NSN 4820-00-497-1677 is a Valve,gate, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-497-1677?

NSN 4820-00-497-1677 has 7 cross-referenced part numbers: 810-1385714 (Naval Sea Systems Command), 1385714 (Naval Ship Systems Command), 1385714-4 (Naval Ship Systems Command), 803-1385714-42 (Naval Ship Systems Command), 803-1385714-4MOD FOAM (Naval Ship Systems Command) and 2 more.

What NSN replaces 4820-00-497-1677?

There are 12 known substitutes for 4820-00-497-1677: 4820-00-184-9107, 4820-00-432-7195, 4820-00-432-9581 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-1385714-4XAF?

Key specifications for 803-1385714-4XAF: Inlet Relationship with Outlet: IDENTICAL; Stem Type: RISING; Maximum Operating Temp and Media for Which Designed: 425.0 FAHRENHEIT WATER-OIL-GAS DEGF; Material: COPPER ALLOY 922 BODY. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-497-1677 still in active supply?

NSN 4820-00-497-1677 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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