PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-1385637-062Valve,check

Naval Ship Systems Command · NSN 4820-01-116-4865 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-116-4865 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-116-4865. Primary manufacturer part number: 803-1385637-062.
Features
  • Valve,check — FSC 4820
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: STRAIGHT THRU FLANGED ENDS
  • Criticality Code Justification: ZZZY
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Valve Operation Method: MANUAL
  • Material: COPPER ALLOY BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-116-4865, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4820-01-116-4865
Primary Part Number803-1385637-062
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorSTRAIGHT THRU FLANGED ENDS
Criticality Code JustificationZZZY
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Valve Operation MethodMANUAL
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-00-489-53481260-011K 600 INTERCHANGEABLE
Valve,check
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-348-6202803-1385637-062 INTERCHANGEABLE
Valve,check
Naval Ship Systems Command
4820-01-438-3050 INTERCHANGEABLE
Valve,check
Cross-Reference Index
Part NumberManufacturer
803-1385637-062 Naval Ship Systems Command (USA)
Related Parts
4820-00-489-5348INTERCHANGEABLE
VALVE,CHECK
1260-011K 600
4820-01-348-6202INTERCHANGEABLE
VALVE,CHECK
803-1385637-062
4820-01-438-3050INTERCHANGEABLE
VALVE,CHECK

Frequently Asked Questions

What is NSN 4820-01-116-4865?

NSN 4820-01-116-4865 is a Valve,check, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-116-4865?

NSN 4820-01-116-4865 has 1 cross-referenced part number: 803-1385637-062 (Naval Ship Systems Command).

What NSN replaces 4820-01-116-4865?

There are 3 known substitutes for 4820-01-116-4865: 4820-00-489-5348, 4820-01-348-6202, 4820-01-438-3050. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-1385637-062?

Key specifications for 803-1385637-062: Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Style Designator: STRAIGHT THRU FLANGED ENDS; Criticality Code Justification: ZZZY; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com